FCS's Hydro Tech 2 is the soft-silicone bodyboard fin built for comfort and kick. The patented V-rail blade drives more water with every kick, and the shape is designed to stop the fin catching when you're locked into a dropknee.Key Features Super-soft silicone construction for unsurpassed comfort, less rubbing on long sessions Patented V-rail design adds blade surface area to boost kick thrust Shaped to avoid catching when bodyboarders ride in the dropknee position Three drain holes flush water and sand quickly so the fins don't load up Contoured ankle strap for a comfortable, secure hold Asymmetrical design spreads the load evenly across your foot $139.95 Details Material: soft silicone Blade: patented V-rail, asymmetrical, with 3 drain holes Strap: contoured ankle strap Use: bodyboarding (incl. dropknee), bodysurfing Colour: Black Sizes: US shoe-size ranges (3–5 through 12–13) Who It's For Bodyboarders — prone and dropknee — wanting comfort and thrust Anyone whose feet get chewed up by stiffer fins; the soft silicone is kinder Riders after a secure ankle strap that holds through duck-dives and wipeouts Bodysurfers wanting a soft, powerful fin SizingSized by US shoe-size ranges — match your shoe size to the band: 3–5, 6–7, 8–9, 9–10, 10–11, 12–13. (Sizes are US shoe ranges — worth a quick confirm against FCS's current Hydro Tech 2 chart before publishing.)Fit tips: silicone fins should fit snug — firm around the heel with no lift when you kick. If you're on the border or surfing cold water, size up and wear fin socks for comfort, and use fin tethers/leashes so you don't lose one in the wash.Stuck between two sizes? Go down a size. Still not sure? Get in touch and we'll help you nail the fit.