Bio Fin Pro w/
Adjustable Rubber Strap
Bio Fin Pro C-Series w/
Stainless Steel Spring Strap
Rubber Heel Protector
Included w/ Spring Strap
Swap out spring length to increase fit range and footwear choices per fin size
Coast Guard Orange
Tech & Tips
Brand does matter! Apollo Bio Fins are only split fins made from 100% natural rubber material. The Bio Fin has proven to be a superior design for short and long distance water operations. Its capability covers all aspects of military operations such as MCT (Maritime Counter Terrorism), MTO (Maritime Tactical Operations), MCM (Mine Counter Measures) and UBDR (Underwater Battle Damage Repair).
Operators prefer to use the Bio Fin Pro series because the natural rubber is negatively buoyant. The flexibility of rubber increases thrust and reduces the risk of surface splashing. If the operator is required to discard the fin, it will sink to the bottom so as not to alert the target of operators presence. The design of the fin make it ideal for helicopter drops.
Independently voted the best overall fin in the world by Scuba Diving Magazine and the first choice of many Military Special Forces units worldwide.
Paddle Fins = Power on down stroke only
Bio Fins = Power on up and down stroke
Ergonomic Design Apollo Bio Fins are designed with a 20º angle to accommodate a diver's natural tendency to bend slightly at the ankle and knee. The angle is crucial to top performance and comfort. The result is maximum propulsion with the least amount of stress on the body. Apollo's choice of superior material and intelligent design provide divers with quick acceleration and the ultimate in power, speed and control.
Kicking It Wider kicks result in loss of momentum. Whether your cruising along or powering through current keep your kicks small.
Tips To keep spring strap hardware cosmetically appealing and easy to service, occasionally remove the screws for a quick brush and... More Care Info
Fin Shoe Size Shoe Size *Length *Width *Weight
Size Men Women Per Fin Per Fin Pair
11 ~ 13
Size chart is intended as a guideline. Actual fit may vary. Recommendation is based on use of 5 mm boot with average sole. If you are in between sizes and have a wider foot or thicker soled boot we recommend selecting the larger size. *Weight and dimensions approximate based on black fins with rubber strap.
Customize Fit: C-series fins are stocked and offered with a specific spring strap length. For example, size L is offered with a 300 mm spring. If you prefer a more customized fit, springs are available to purchase separately in 250 - 350 mm. See Fin Accessories and Spares for more info.
NSN 4220-66-152-2592 Apollo Bio Fin Pro XS, S, M, L, LL, Black
NSN 4220-66-152-2668 Apollo Bio Fin XT M, L, Dark Grey
Stainless Steel Silver Springs available in 250, 275, 300, 325 and 350 mm. Suitable for use with all Apollo spring strap kits and fins with spring straps installed. Item sold as set. $30 Pair
Stainless Steel Spring Strap Kits suitable for use with any brand fins.
Stainless Steel Springs Black 275, 300, 325 and 350 mm. Suitable for use with all Apollo spring strap kits and fins with spring straps installed. Item sold as pair, includes black plates. Call to order $45 Pair
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