The Vest Made to Inspire Your First Trail RacePlush next-to-body materials and fully adjustable Comfort Glide fit system make the Trail Vest your comfiest piece of gear for training runs and trail races. Paired with a 1.5L reservoir (included), water bottle pockets and secure storage throughout, this vest has everything you need to hit the trails. FeaturesComfort glide back adjuster system for full body adjustabliityComes in 2 sizes for customizable fitComes with a 1.5L reservoir so you have everything you need to run your first ultra. Large back pocket can hold up to a 2 liter resivoir. Up front bottle pockets can hold up to a Body Bottle 500.Secure front mesh pocket capable of fitting a phone. Rear mesh stash pocket. Easy access main pocket with quick auto closure. Materials100% polyesterSpecs Weight (without bottles): 7.58 oz / 215 g Volume: 330 in3 / 5.41L | Ultimate Direction Trail Vest in Onyx Size Medium/Large