No matter how fast or far you're running, this vest is built to keep you at the top of your game. Designed to be 20% lighter and more breathable than the Krar and Howe vests, the Pinnacle series fits like a second-skin and adds two new kangaroo pockets to the collection of smart storage spaces. Materials: 85% Polyester / 4% Spandex / 8% Nylon / 2% Rubber Wire Weight: 0.68lbs / 311.84 g Weight without Bladder: 6.5oz / 184 g Weight with Bladder: 12.5oz / 354 g Capacity: 732.2 cu in / 12 Liters Dimensions 16 x 16 x 4 in Care Instructions: Hand wash cold with mild detergent, Line dry. Do not use bleach or fabric softener. Do not iron or dry clean