Brand: CRESSI Model/Name: REACTION PRO Type: Full foot, plastic fins Size: 40/41 Color: Black Application: Diving *Size 40/41 Length: 64 cm Width: 21.5 cm Height: 8 cm Blade length: 36 cm Weight: 750 g Barefoot size: 27 cm These plastic fins are lightweight. The shape of the blade allows your foot to fit inside, giving you a good feel for catching the water when kicking. The size feels like one size smaller when wearing socks.