VIPER 640 M-8 MAINSAIL Color:Gray The BR-1 is available in

The BR-1 is available in two standard panel layouts

Maximize your performance with the bi-radial V-5 AP Jib

and the depth is balanced from top to bottom to make trimming easier

The M-10T Mainsail is an all-purpose

VIPER 640 M-8 MAINSAIL Color:Gray The BR-1 is available inThe M8 is an update to our tried and true M7 the winningest Mainsail in class history with Multiple World and Continental Championships. With a proven shape that delivers unparalleled top end speed and a forgiving twist profile, the M8 is built from our proprietary North XI laminate cloth. The forgiving nature of this sail makes it easy to get up to speed and stay there!