LET LOOSE IN THE BLACK DIAMOND FLOW TANK.This summer, stay cool on all your adventures in the Black Diamond Flow Tank. It is designed to be lightweight and breathable with a dropped back hem for added coverage. Built for ultimate comfort, this is the tank you want every time you head to the gym or crag. FEATURESFlat-lock stitching for unobtrusive next-to-skin comfortRacer back fit added style pointsDrop Back HemTECH SPECS94% Polyester, 6% Linen