A key accessory from the new Y-3 Sport collection takes the form of this tech spec backpack, featuring a body fitted profile and a 360-degree reflective finish. The innovative design makes use of adidas' ClimaCool technology on the back, using a ventilated platform to ensure comfort and moisture management. An integrated water reserve hanging system allows for a hydration apparatus, while waterproof zips keep the pack secure. Rounding out the details are multiple stash pockets for keys, credit cards and assorted small items. The pack is available now at Y-3Sport.com.