Slack Tide Foil Club  —  Premium Foil Gear & Coaching

AppleTree Board size guide

Slack Tide Foil Club

Appletree Foil Board Size Guide

All Appletree boards are built from 100% carbon fibre with 50K closed-cell foam — the stiffest, lightest construction in the market. This guide covers the two core boards we stock: the Appleslice V4 and the Skipper Midlength.

Appleslice V4 — Wing Foil Board

Winging · Surf Foiling · Freestyle · Progression

Appletree's flagship and best-selling board. A planing hull shape that's stable, beginner-friendly, and versatile enough to grow with you from your first sessions all the way to advanced carving. Comes in 7 sizes from 50L to 115L — pick your volume based on your weight and ability.

4'10" · 50L

4'10" × ~19.5" × ~3.5"

Advanced
Volume50L
Rider wt.~55–65kg
Volume50L

Best for

High performanceFreestyleSurf foil crossover

5'0" · 60L

5'0" × ~20" × ~3.7"

Advanced
Volume60L
Rider wt.~65–75kg
Volume60L

Best for

CarvingSurf foil crossoverFoil Drive
Intermediate sweet spot

5'2" · 70L

5'2" × ~20.5" × ~4.0"

IntermediateAdvanced
Volume70L
Rider wt.~70–80kg
Volume70L

Best for

All-round wingingPerformance + stability
Intermediate sweet spot

5'5" · 80L

5'5" × ~21" × ~4.3"

IntermediateAdvanced
Volume80L
Rider wt.~80–90kg
Volume80L

Best for

All-round wingingHeavier intermediate

5'7" · 90L

5'7" × ~21.5" × ~4.6"

BeginnerIntermediate
Volume90L
Rider wt.~80–95kg
Volume90L

Best for

Light windProgressionHeavier riders

5'9" · 100L

5'9" × ~22" × ~4.9"

BeginnerIntermediate
Volume100L
Rider wt.~90–105kg
Volume100L

Best for

Light windEarly progression
Beginner recommended

6'0" · 115L

6'0" × ~22.5" × ~5.1"

Beginner
Volume115L
Rider wt.Any / 90kg+
Volume115L

Best for

First boardMax stabilityLight wind
Ability Rider weight Recommended volume Notes
Beginner Under 80kg 90–100L Stable planing hull; max forgiveness on water starts and touchdowns
Beginner 80kg+ 100–115L Floating volume means you won't sink on the surface in light wind
Intermediate Under 75kg 70L The V4 sweet spot — performance + stability, sinker/floater crossover
Intermediate 75–90kg 80L Enough volume to float and assist takeoffs, still agile on foil
Advanced Under 65kg 50–60L Maximum reactivity, carving, and freestyle performance
Advanced 65–80kg 60–70L High-performance sinker; great surf foil crossover and Foil Drive use
Advanced 80kg+ 70–80L Still a sinker at this weight; excellent range and low-wind performance
V4 tip: The V4's planing hull makes it more stable and beginner-friendly than the Skipper Midlength. If you're new to winging or ride in choppier conditions, the Slice is the right call. As a rule of thumb, your volume in litres should roughly match your body weight in kg — or exceed it for your first board.

Skipper Midlength — The One-Board Quiver

Winging · Prone Foiling · Parawing · Foil Assist · Downwind

A narrower, displacement hull shape built for speed and early takeoff. Slender per volume, it gets onto foil earlier than an equivalent V4, making it exceptional in lighter winds and marginal conditions. Ideal for intermediate to advanced riders, or beginners who want to grow into a performance board.

Size Width Thickness Volume Volume bar Ability Rider weight
5'0" 18" 3.13" 37L
37L
Advanced ~55–65kg
5'3" 18.5" 3.72" 47L
47L
Advanced ~60–75kg
5'6" 19" 4.15" 57L
57L
Intermediate Advanced ~65–80kg
5'9" recommended 19.5" 4.48" 67L
67L
Intermediate Advanced ~70–85kg
6'0" recommended 20" 4.8" 77L
77L
Intermediate ~80–95kg
6'4" 20.5" 5.0" 87L
87L
Beginner Intermediate ~90–100kg
6'8" 21" 5.09" 97L
97L
Beginner Intermediate ~95kg+ / light wind specialist
Ability Rider weight Recommended size Notes
Beginner Any weight 87–97L More volume offsets the narrower shape; consider the V4 if you want more width stability
Intermediate Under 70kg 5'9" – 67L Displacement hull gets onto foil earlier; great all-round wing and parawing size
Intermediate 70–90kg 6'0" – 77L Best all-round size for winging, prone, and parawing in a wide range of conditions
Intermediate 90kg+ 6'4" – 87L Extra length aids light-wind takeoffs; narrow shape still feels lively on foil
Advanced Under 65kg 5'3" – 47L High-performance sinker for prone foiling and experienced wingers in stronger winds
Advanced 65–80kg 5'6" – 57L Excellent for prone, foil assist, and advanced winging in varied conditions
Advanced 80kg+ 5'9" – 67L A 67L at this weight is a sinker; super agile and fast in the right hands
Midlength tip: All sizes end in a 7 — that's how you spot a Skipper Midlength in the range. The displacement hull gets onto foil earlier than the Appleslice V4 at the same volume, making it the go-to for light wind and prone foiling. If you're between sizes, go up — you can always size down as you progress.

Appleslice V4 vs Skipper Midlength

Not sure which board?

Choose the Appleslice V4 if you're new to winging, you ride in choppier or heavier conditions, you want a stable platform to learn on, or you're looking for a do-everything beginner-to-intermediate board. Its planing hull is wider per volume and more forgiving on the surface.

Choose the Skipper Midlength if you want maximum light-wind performance, you prone foil or parawing, you're using a foil assist system (Foil Drive compatible), or you want one board that covers surf, wing, and downwind in all conditions. The displacement hull gets onto foil earlier — but it's narrower, so the surface handling takes some getting used to.