Waterproof Glacier | White The fan favorite made waterproof. Re-engineered for a better fit with more comfort and more sustainable materials. Key features Weight: 227g Waterproof membrane for wet-weather protection Improved fit for added comfort CloudTec® in Zero-Gravity foam provides cushioned landings Updated Speedboard® transforms energy into forward motion Molded heel design holds your foot securely in place More comfort. More recycled materials. Sustainably waterproof The fully waterproof membrane keeps the elements out and lets feet breathe. Even better? This climate control is made with the climate in mind. The upper is made from 100% recycled materials.