The Heir apparent to our ever classic Enduro Heir The Tycho is back. This reimagined construction offers full, exposed heel air combined with our patented, light weight Vaporcell midsole, all framed and protected by a high qualit y rubber exoskeleton. The upper is progressive with Isoweld underlays, sleek last shape and stylish quarter design. Other standard features include Max Lace, Vaporcell + footbed, Heel Lock suppor t system and Energy Fit tongue. Put simplyThis is tech at it's finest.