VIPER 640 M-8 MAINSAIL Color:Gray It is full in the

It is full in the front and straight leeched for high speed and power at the same time

The GR-3 Yngling mainsail is designed and has proved to be a force to be recon with throughout a whole wind range

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

it is also can more than hold its own against outstanding on a tight reach

VIPER 640 M-8 MAINSAIL Color:Gray It is full in theThe 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!