Force IV
Performance Wave

View the Sail Specifications HERE
The Force FOUR strikes a perfect balance between power, responsiveness and light weight. Smooth and forgiving, this wave sail delivers excellent low-end power combined with outstanding top-end control, while providing an “in-between-the-hands” power distribution. Our most versatile wave sail, the Force FOUR is equally at home in sideshore, onshore and offshore conditions and is also an excellent choice for freestyle.
Sizes: 3.4, 3.7, 4.1, 4.5, 4.7, 5.0, 5.3, 5.7
- 4 Battens = Good stability + very responsive
- Center Shape = Power + early planing
- Medium Aspect Ratio = Great handling + wide range
- Twin X-166 Luff Panels = Solid, locked-in power
View the Sail Comparison Chart HERE
Standard Clew Construction
The radial clew is the strongest and lightest design in the industry. A custom titanium ring is connected directly to radial Kevlar load strips via high-tenacity nylon webbing. The Warp Kevlar taffeta leech and foot tapes carry the perimeter loads.
Tack Fairing
Durable molded EVA tack fairing that folds back for easy rigging and protects the sailor’s feet, mast and board. It features a grommet for the uphaul line and a mesh pocket with a Velcro closure for storing the downhaul line.
Equilibrium™ Batten Pockets
Improved rotation + light + durable
Roller Tack Pulley
A downhaul pulley that integrates a lightweight die-cast stainless steel housing and low-friction Nylatron GSM pulleys. It provides both standard 6:1 and 4:1 rigging options. This system makes downhauling very easy and reduces wear and tear on the downhaul line.
Loop-and-Go
The unique geometry of our pulley offers both traditional 6:1 AND 4:1 “loop-and-go” rigging.
Downhaul Pocket
Secure mesh pocket with Velcro for storing the downhaul line.
Boom Opening + Position Marker
The boom opening has a long sleeve cutout for easy rigging, and features position markers that enable perfect boom positioning every time you rig.
Scuff Protection
Naish sails include comprehensive lightweight PVC scuff protection for both sides of the sail.
Roll up bungee
Simple and convenient one-step fastening system for quick sail stowage