Check the listing for details. Scubapro S-Tek Blade, Orange, Maxi. Color: Orange, Condition: New. Listed at 139.00 USD. A new addition to SCUBAPRO’s S-Tek line of technical diving equipment, the S-Tek Fin is a purpose-built, next-gen technical diving fin providing maximum power when you need it. Constructed of durable Monprene® and designed with an ultra-streamlined profile, the S-Tek Fin’s 30º pre-angled blade requires less deflection to achieve the desired angle of attack for an efficient kick. This allows for a stiffer blade without increasing drag, thereby reducing leg cramps and ankle strain while delivering unbeatable maneuverability and alternate kick performance. The S-Tek Fin's two-piece design, with blade and foot pocket molded separately, allows you to use the same foot pockets from the Seawing Supernova fin with just the S-Tek blade. Simply disassemble the Supernova's Socket-Lock Connecting.