Blitz is a purposely designed spear fishing and free-diving fin with special Tri-material construction technology. The rib-like structures found on the side and blade surface are hydro-dynamic. They channel water directly backwards and gives full purchase of thrust while keeping energy loss at a minimum level.
|IST APNEA FINS SIZE CHART (BAREFOOT)|
|IST APNEA FINS SIZE CHART (WITH SOCKS)|