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