The Suds is our modern twin fin — built for riders who want a twin's looseness without losing bite when the wave gets steep.
WHAT IT WANTS
Clean waist-to-head surf with shape — beach break, point, or reef with some push. Twin fins want a face to drive off; dead-flat mush won't bring the shape alive. Punches above its weight at Lowers, Salt Creek, and the smaller-day Mentawais.
SKILL LEVEL
Intermediates comfortable on a twin fin, and advanced surfers who want speed from shape rather than fin count.
WHAT IT'S NOT
Not a flat-day groveler — for knee-high mush, a wider and flatter shape will paddle and plane better. Not a hollow-reef board either; when the surf gets big and heavy, a dedicated shortboard or step-up will give you more control.
BUILD DETAILS
Build overview — rocker profile, rail shapes, fin positions. Hover any zone for the per-section call-outs.

HOW IT'S DESIGNED
Low entry rocker keeps paddle real on softer mornings — the nose drops cleanly onto the water without pearling. A single concave runs the length of the bottom: the classic twin-fin drive surface that loads the lead foot and generates speed through the middle of a wave. Medium exit rocker keeps the tail alive off the top so the board pivots through the flat middle of a wave instead of stalling after the first turn. The swallow tail releases water cleanly between the two fins — the canonical modern-twin shape that gives the lateral pivot a clear path off the back foot.
THE RAILS
60/40 rails through the midsection feel forgiving at twin-fin speeds without giving up bite when you lay the board on rail. Hard rails through the last 12" of the tail release water cleanly at speed — what separates the Suds from the broader retro-fish field, where softer tail rails wash out in punchy surf.
THE DESIGN
A twin fin trades the all-conditions versatility of a thruster for speed off the bottom and looseness through turns. Wider plan-shapes than a shortboard at the same length pull the wide point forward, with a fast back third built around the fin cluster.
Custom builds are tuned to your dims and surfing style. Talk to Blake about specifics.
+ Not sure which size? Calculate your volume
Volumes are starting points, not rulebooks. Conditions, stance, and style all shift the math.
STOCK DIMENSIONS
Stock dimensions are where we start. Customers tweak width, thickness, and volume to match where they surf and how they ride. Twin fins ride a hair fuller than performance shortboards of the same height — read the volume column, not just the length. Talk to Blake about any adjustments you'd like to make — he'll help you dial in a board with your riding preferences in mind.
Featured sizes cover the core-liters range (26–35L) most of our customers land in. Need a size outside the band? Expand All sizes or start a custom order for a specific dim.
| Length | Width | Thickness | Volume |
|---|---|---|---|
| 5'2" | 19.13" | 2.19" | 25.6L |
| 5'3" | 19.25" | 2.25" | 26.6L |
| 5'4" | 19.38" | 2.25" | 27.6L |
| 5'5" | 19.50" | 2.31" | 29.0L |
| 5'6" | 19.63" | 2.38" | 30.4L |
| 5'7" | 19.75" | 2.44" | 31.8L |
| 5'8" | 19.88" | 2.50" | 33.3L |
| 5'9" | 20.00" | 2.56" | 34.8L |
| 5'10" | 20.13" | 2.63" | 35.4L |
+ How to think about dims
Length. Longer = more rail line in the water (drives through a turn, holds through flat sections, paddles better). Shorter = quicker rail-to-rail, tighter in the pocket. Twin fins reward length more than a thruster does — a 5'10" twin often surfs like a 5'8" thruster because the fin setup gives back what the extra rail holds.
Width. Narrower = holds a line in clean, fast waves; faster rail-to-rail. Wider = paddles better, more stable in softer surf. Suds runs slightly wider than its thruster equivalents because the twin setup generates less drive on its own.
Thickness / volume. More volume = more paddle and more margin on soft days. Less volume = sensitive underfoot; rails sink cleanly; turns feel crisper. Most twin-fin customers size up 1–2L compared to their go-to shortboard.
Up an inch, down a liter. Sizing up a Suds for paddle in mushier surf works, but only to a point — at 36L+ a Suds starts to feel directional and loses the looseness that defines a twin. If you want a true grovel twin, ask about the next model rather than oversizing.
Between sizes? Size up in volume (not length) for softer waves, and down in volume for overhead surf with real push.
Don't see your size? Message Blake
FIN SETUP
Twin only. Glass-ons recommended for the cleanest feel; we'll build with FCS II or Futures boxes if you want removable fins. The shape is tuned around a twin fin specifically — we don't offer quad, thruster, or trailer conversions.
Need help picking between rake and pivot templates, or sorting glass-on vs box considerations? Read the fin guide, then start a conversation — Blake's happy to talk it through before you lock the build.
Recommended Fins
Suds is the everyday twin-fin workhorse — waist-high to overhead, it should work. Twin keels with mid-rake foils keep Suds loose without sacrificing drive through long-line carves. Lean toward modern keel templates (more upright than retro) if you ride punchier beach break; lean classic keel if your home break is fattier point.

JS Modern Keel
M-L· Performance GlassModern Keel / Mid-Rake
A modern keel template tuned for the JS twin-fin shapes. Drive and hold across long-line carves with a clean release off the top — the punchier-surf pick.
Shop FCS II →
Mayhem Twinzer
L· HoneycombTwinzer / Mid-Rake
Matt Biolos's twinzer cluster — the small canard outboard adds bite and projection to the modern twin without flattening the looseness.
Shop Futures →
Knost Twinzer
· HoneycombClassic Keel / Rake-Leaning
Alex Knost's twinzer — fuller-foiled keels with more rake than the Mayhem. The right pick for fattier walls where you want sustained drive and a longer arc.
Shop Futures →
TA Twin
· Solid FiberglassModern Twin / Mid-Rake
True Ames's house twin keel — hand-foiled solid fiberglass with classic mid-rake drive. The pure-feel twin pick for retro twin shapes that want trim character and a long arc.
Shop True Ames →
Furrow Twinzer
· Solid FiberglassTwinzer / Rake-Leaning
Hand-foiled fiberglass twinzer set — main keels paired with small canards for added projection. More drive than the TA Twin; a step closer to a full keel feel for fattier surf.
Shop True Ames →
Nautilus Twin
· ApexModern Twin / Mid-Rake
NVS's flagship twin. Hand-foiled fiberglass keel set with smooth mid-rake drive — runs as a glass-on (no box) for a pure-feel build.
Shop NVS →
Stu Kenson Twinzer
· ApexTwinzer / Rake-Leaning
Stu Kenson's collab — hand-foiled fiberglass twinzer with rake-leaning template tuned for held-rail drive on fattier walls. The drive-focused alt to the Nautilus.
Shop NVS →Not sure which fin template is right for you? Rake, area, flex, and construction all change how a board feels.
Read the Complete Fin Guide →RAKE SPECTRUM
Where each recommended fin sits between drawn-out rake (heavier arcs, more hold) and tight pivot (vertical release, modern shortboard turning). Mid-rake (neutral) is the balanced default.
Drawn-out arcs. Power, hold, drive through long-line turns.
Balanced — drive plus pivot release. The everyday HPSB default.
Tight, vertical release. Modern shortboard pivot off the top.
FCS IIJS Modern Keelmid-rake (neutral)
FuturesMayhem Twinzermid-rake (neutral)
FuturesKnost Twinzerrake-leaning
True AmesTA Twinmid-rake (neutral)
True AmesFurrow Twinzerrake-leaning
NVSNautilus Twinmid-rake (neutral)
NVSStu Kenson Twinzerrake-leaning
On a twin fin, the spectrum reads: rake = sustained drive and trim speed in fattier waves; mid-rake = the everyday pick that still releases off the top. Pivot-leaning twins exist but are rare.
WHAT TO PICK
Twin fins live mid-rake to rake-leaning. Drive and looseness both want the side fins to hold a long arc rather than pivot tight. Lean rake for fattier, drawn-out point break and longer carves; sit nearer mid-rake when you want a touch more release on punchy beach break. Per-fin picks for this model are coming — message Blake for current recommendations.
SPECS REFERENCE
Full Build Specifications
Stock dimensions, rocker, bottom contour, rail profile, fin positions, recommended fins by brand, and shaper notes for shapers and partner shops.
AVAILABLE IN THE SHOP
Ready to ride. Stop by San Clemente or message us to claim one — they move fast.
CONSTRUCTION & PRICING
Starting at $750 + tax
Every Suds is built to order in San Clemente. Pick a finish tier below; customize further in the next section.
Clear Resin Sanded
4-6 weeks
Functional finish, fastest turnaround. PU blank, polyester resin, sanded off the lam.
Resin Tint Sanded
6-8 weeks
Color both sides of the board in the lam, then sand it smooth.
Tint Gloss + Polish
8-10 weeks
Top-tier finish. Resin tint plus a gloss coat polished to show-quality.
Foam + Resin options
Customize your build
AESTHETIC
STRUCTURAL
25% deposit today, balance due on completion. Timeline reflects current queue — confirmed on order.
Boards we've built
Recent customer builds — every Suds dialed to the rider.
1162204AT — Jim Schwarz (5’9 Midnight Blue)
1182204AT (5'4 Green Fade Rails)
5'7 Suds (1622219AT)
3372222DR — Hudson Glover (5'11 Violet Red G+P)
3402301JNY — Ryan Lundquist (6'4 Midnight blue)
3742313MH — Kolton Sullivan (5'3 Clear Simple)
3802320MH — Krista Vaughn (5'6 Green)
4312322SR — Nate Ball (6'0 Red Deck Japanese Football Board)
4612401MH — Randy Vaughn (BE) (5'9)
4622401MH — Randy Vaughn (BE) (5'9)
GO DEEPER
Every construction call links to a full guide. Start with the essentials:
Board Details Checklist
Everything we need from you to begin your custom build.
Learn more →
Foam & Resin Types
Understanding the materials that make up your board's core and shell.
Learn more →
Fins — A Complete Guide
Single fins to thrusters, base systems, sizing by weight + wave, and how to pick across True Ames, NVS, Futures, and FCS.
Learn more →
Gloss + Polish vs Sanded Finish
The final touch that defines how your board looks and feels.
Learn more →
FREQUENTLY ASKED QUESTIONS
What size Suds should I order?
Most riders land between 5'6" and 5'10" on the Suds, in the 26–35 liter band. Twin fins ride a hair fuller than performance shortboards of the same height — read the volume column on the spec table, not just the length. If you're unsure, message us with your weight, your go-to wave, and the dim of your current daily driver. A 150-lb rider in clean waist-to-shoulder surf usually lands around the 5'7" / 31.8L build (the dim our in-stock 5'7" reference board sits on); a heavier rider or someone surfing softer mornings can size up to the 5'9"– 5'10" range without giving up the looseness that defines a twin.
What waves does the Suds work in?
Waist-high to overhead. Peak performance is shoulder-to-head-high beach break and reef — Lowers on a south swell, T-Street on a clean day, Salt Creek when the sand cooperates, San Onofre's softer outside sections, Blacks. Holds a line on overhead reef when you take it on a Mexico mainland or Mentawais trip; size up to a different model for solid double-overhead and bigger. The Suds is built for the middle of the wave-range bell curve, not the tails of it — it's not a knee-high grovel board, and it's not a step-up gun.
Why a swallow tail?
The Suds runs a swallow tail because that's the canonical modern-twin release shape — water exits cleanly between the two points, which gives the lateral pivot a clear path off the back foot. The contour diagram for the Suds shows the swallow paired with 60/40 rails that go hard through the last 12" of the tail; that combination is what lets the board hold a line at speed without losing the looseness twin riders pay for. We can build a Suds with a squash or a round tail at no upcharge if you want to tighten or draw out the turning radius — ask Blake at the order conversation. A pin tail isn't offered; pins on twins are an unusual ask and we'd rather build them as a different model.
Can I get glass-on fins on the Suds?
Yes. Glass-on twins are available as a $150 upcharge per the standard pricing in `custom-pricing.ts`. Glass-ons lock the fin template in permanently — most riders who already know exactly which template they want go this route, since the hydrodynamics are slightly cleaner without the box-and-tab interface. Everyone else takes the Futures plug system as the default, which lets you swap templates over the life of the board. The 5'7" Suds we currently have in the shop (#1622219AT) is glass-on twins — that physical board is the design intent reference for the model.
How does the Suds compare to a Channel Islands Twin Pin or an Album Twinsman?
The Suds sits inside the same modern-twin field as those two boards — same volume band, same wave range, same broad design vocabulary (modern foiling on a twin outline). The pitch that distinguishes the Suds is the bite-over-bagginess balance: the rocker and rail philosophy keep it from sliding out when a wave gets steep, where a softer-railed twin in the same volume band starts to wash out. Album's Twinsman and Townsman, the CI Twin Pin, the Firewire Seaside, and the Lost RNF '96 are all good comparable twins to ride before ordering — they share the modern-twin DNA. The Suds is built to be your daily driver when you've been riding twins long enough to know exactly what you want from one.
What's the build turnaround?
Three finish tiers determine the timeline. Clear-sanded ($750) ships in 4–6 weeks — that's the fastest because there's no tint or gloss-polish pass to schedule around. Resin tint sanded ($900) takes 8–10 weeks because the tint pass adds a separate lam stage. Resin tint plus gloss-polish ($1,100) lands at 6–8 weeks — slower than clear-sanded, faster than tint-sanded because the gloss-polish pass runs in parallel with other queue jobs. All timelines are confirmed on order; Blake will let you know exactly where your Suds sits in the queue when the deposit comes in. 25% deposit holds your slot; balance is due on completion.
Glassing options — what should I pick?
The Suds defaults to a 4oz S-cloth + 4oz warp deck and a 4oz S-cloth bottom (`4S+4W` deck / `4S` bottom) — the standard performance schedule for the 4'6"–6'7" tier. That's the right call for most riders in clean SoCal surf. If you ride heavier (over 180 lbs) or you're building this for a Mexico mainland or Mentawais trip where you'll be on overhead reef regularly, ask about a 4S+6W deck — the extra weight buys you durability without changing the ride character. The default stringer is 3/16" basswood; the default foam is US Blanks. If you have specific glassing or stringer requests, flag them at order time — Blake will tell you which combos work for the Suds outline and which fight it.
Can I demo a Suds before I order?
We don't run a formal demo program, but the 5'7" in-stock board (#1622219AT — used, $425, glass-on twins) is the closest existing public reference for the Suds ride feel. If you're local to San Clemente, message Blake; depending on schedule, it may be possible to arrange a try-before-buy at Doheny or Salt Creek when conditions allow. For travel-oriented riders or out-of-area customers, the combination of the spec table, the contour diagram, and a phone call with Blake is usually enough to dial the order in — most customers get the right Suds the first time without needing to ride it first.
Open questions for Blake
- [ ] Q1 / sizing recommendation: confirm the "5'7" / 31.8L for 150-lb rider in waist-to-shoulder" rule of thumb. If your actual sizing math differs, replace. - [ ] Q3 / contour diagram reference: confirm the swallow-tail design rationale reads in your voice — happy to swap "canonical modern-twin release shape" for whatever framing you prefer. - [ ] Q5 / comparable boards: confirm the Twinsman / Twin Pin / Seaside / RNF '96 cross-references. None of them are exact peers; they're recognizable comparables for a customer doing multi-builder research. - [ ] Q7 / glassing defaults: confirm 4S+4W deck / 4S bottom is still the Suds default. The construction.md draft flags this as `[BLAKE: ?]` — if you've moved off that schedule for any reason (e.g. moved to a 4D+4W, different cloth supplier), replace. - [ ] Q8 / demo policy: confirm we don't run formal demos, and that the in-stock 5'7" is the closest public reference. If there's a demo program in the works, swap the answer.
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Other models with shapes, finishes, and feels that sit close to the Suds. Tap any board to see its full page.
COMPLETE THE QUIVER
“Surf Everyday” means a board for every condition. Your Suds covers waist-high to overhead— here's what rounds out the quiver.
Salt Burn
Salt Burn— Twin Fin
Sister twin fin in the Lundquist line — different rocker, foil, and outline character. See the Salt Burn page for the full breakdown.
Learn more →

Revenant— Twin Fin
Sister twin fin in the Lundquist line — different rocker, foil, and outline character. See the Revenant page for the full breakdown.
Learn more →

Pin Twin— Twin Fin
Sister twin fin in the Lundquist line — different rocker, foil, and outline character. See the Pin Twin page for the full breakdown.
Learn more →
Building a quiver around the Suds? Start a conversation — we'll build the right boards for how and where you actually surf.
More boards live in the website catalog than at the shop. Visits are by appointment — text or call (949) 750-5067 to look at boards in person or start a custom build.
READY TO START?
Every Suds is built to order in San Clemente — 4–6 weeks on clear-sanded, 6–8 weeks gloss and polish, 8–10 weeks tint-sanded. 25% deposit.
Shop: 106 W Mariposa Unit B, San Clemente, CA 92672
By appointment · 8am–8pm daily · (949) 750-5067
















