Seac Booster are long fins for freediving and spearfishing. Their structure makes them perfect for heavy use. Even after many hours you will continue to appreciate their performance and comfort. Thanks to the careful study of the polymers and to the rubber overmolded drifts on the ends, Seac Booster features a flexible and reactive blade. The hole at the base of the blade channels the flow of water contributing to less friction and less fatigue. For a perfect fit, the highly appreciated Motus series footpocket has been preserved: snug, soft, designed to be used with 3mm neoprene socks. Blade length 24". Blade max width 8,27". Weight of single fin (size 9.5-10 US) 233.70 lbs.