Atomic Aquatics Blade Fin The Atomic Aquatics Blade Fin is built for divers who want streamlined power in a compact, travel-friendly design. Featuring Atomic’s hydrodynamic blade profile, this fin delivers smooth, responsive propulsion with minimal drag. The open-heel foot pocket and adjustable strap provide a secure, comfortable fit—ideal for warm-water diving, training, and travel. Key Features Hydrodynamic blade design provides efficient thrust with minimal drag Compact profile offers easy packing and travel convenience Durable Atomic Aquatics construction engineered for demanding dive conditions Open-heel fit with adjustable strap helps ensure secure, comfortable retention Performance Power: Moderate to strong Flex: Medium Kick style: Efficient flutter kick Buoyancy: Neutral to slightly positive Fit and Sizing Notes Open-heel fins are designed to be worn with dive boots Adjust the strap for a secure fit without pressure points If between sizes or using thicker boots, consider sizing up Refer to the sizing chart below for best results Size SM MD LG XL US Men’s shoe size 5.5 6 – 8.5 9 – 11 11.5 – 13 US Women’s shoe size 6 – 7 8 – 10 11 – 12 13 – 14 European Men’s shoe size 37 – 38 39 – 41 42 – 43 44 – 46 Length (inches) 23.5 24 24.5 25.5 Width (inches) 7.75 7.75 8 8 Weight (pounds per pair) 3 3 3 3