GORE-TEX products have always provided best-in-class waterproof protection, coupled with complete windproofing. Does your GORE-TEX product sport a Black Diamond? Then it's GUARANTEED TO KEEP YOU DRY™.<br><br>And yes, that’s a real guarantee: the brand itself will repair, replace, or refund any product that doesn’t live up to GORE-TEX's rigorous standards. The brand's confidence in its technologies stems in part from the unparalleled testing that every GORE-TEX product must go through before it earns its Black Diamond.<br><br>The GORE-TEX membrane - at the heart of their technologies - contains pores smaller than a water droplet but larger than a water molecule: it stops rain and snow getting in but lets evaporated sweat get out. In other words: you enjoy the best possible breathability.<br><br>Whether the sun is beating down hard or it's icy all over, your body sweats when you’re on the move. Black Diamond GORE-TEX products allow that water vapour to escape without sacrificing waterproof protection.