The Severne S-1 is an incredibly light, 4-batten, maneuver oriented wave sail. If you spend a lot of time in the waves, you'll definitely appreciate the light weight handling of the S-1. Just enough pull on the back hand to absolutely rip through a top turn while at the same time going completely neutral on the bottom turn. With a higher center of effort compared to the Blade, the S-1 is also incredible in the air.