VIPER 640 J-5 JIB
Designed with the same shape and twist as the multiple World and Continental Champion J4 jib, the J5 takes durability and performance to another level with the introduction of Aramid fibers. You'll enjoy a longer lasting racing shape and superior performance throughout the wind range. The J5 has been impossible to beat since it's introduction. It comes with 3 different stiffness options for your top batten so you'll be well suited to use it in any condition!
World | North American | National
World | North American | National
- Full Battens
- Leech Battens
- Trim Stripes
- Visibility Window
POWER UP
VIPER 640 SPEED GUIDE
Dive into the North Sails Viper 640 Speed Guide - your essential companion for mastering speed, tactics, and winning strategies.
Dive into the North Sails Viper 640 Speed Guide - your essential companion for mastering speed, tactics, and winning strategies.
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SAIL FAST
VIPER 640 TUNING GUIDE
The North Sails Viper 640 Tuning Guide is a resource for class sailors aiming to optimize their performance on the racecourse. Packed with expert advice and detailed instructions, this guide covers rig setup, sail trim, and tuning techniques, helping you unlock your Viper's full potential.
The North Sails Viper 640 Tuning Guide is a resource for class sailors aiming to optimize their performance on the racecourse. Packed with expert advice and detailed instructions, this guide covers rig setup, sail trim, and tuning techniques, helping you unlock your Viper's full potential.
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EARN THE WIN
North Sails wins more races than any other sailmaker because of their relentless commitment to innovation, technology, and performance. With a team of expert designers, engineers, and sailors, North Sails is constantly pushing the boundaries of what is possible in sailing.
North Sails wins more races than any other sailmaker because of their relentless commitment to innovation, technology, and performance. With a team of expert designers, engineers, and sailors, North Sails is constantly pushing the boundaries of what is possible in sailing.
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