The Hydro Tech 2 fin was developed using Hydro's decades of fin making experience with a focus on ultimate comfort reducing kick effort and maximizing performance. The T2 fin is manufactured with a revolutionary new material called T-Form a super soft material providing unsurpassed comfort eradication of blisters and beneficial flex characteristics. The Jet Flush System is the most effective system of any surf fin. It releases sand and water from the foot cavity faster than it enters. To increase comfort and power output the fins have been custom designed separately for the left and right foot using round edges in the foot pocket to ensure abrasion free surfing time. Combine this with the Ergo Blade and V-Rails and we now offer amazing kick to thrust ratio. Hydro Tech 2 fin. Winner of the Australian Design Award. Silicon based fin - eradicates ulcers while providing super ergonomic foot pocket design and movement. User friendly and ergonomically designed surfing fin. Uses T-form instead of rubber creating a comfortable and foot friendly fin on the market reducing effort to create thrust. Patented V-Rail design provides greater surface area for extra thurst. Jet Flush System super efficient drain holes - your flippers aren't filling up and anchoring you down. Left and right molds - each fin is tailor made to the natural movement of your legs. Ergo Blade - eradicates ankle/leg twist and injuries. Increased thrust whilst reducing strain on the wearers body. These fins DO NOT float - very important to wear fin savers! Imported. Style #: 7902IBL.