The Mavic Tri Helium Shoe has everything you need in your next Triathlon that you would expect from a race shoe. This should is lightweight, maximizes your energy transfer, and offers sockless comfort for your quickest transitions ever! The Ergo Bonded Upper area is constructed to be ultra light without sacrificing comfort. The Energy Full Carbon SLR Outsole is also incredibly lightweight, yet stiff. The Energy Lock Carbon craddles your heels as you ride. The Ergo Tri Strap is designed to make your transition effortless from pushing your limits on the bike, to pushing your limits during the run. Weighs only 240 grams!