The Hydro Tank is incredibly comfortable and carries everything you need The tank defies expectations: even with two full 300ml bottles stored in its custom pockets along with your phone it's comfortable and doesn't bounce or chafe. Don't let its breezy looks deceive. This is the most technical running tank available. Features Comes with 2 custom 300ml bottles for a total of 600ml capacity Custom bottles fit into secure bottle pockets for a bounce free water carry system that doesn't ride up Center back pocket fits extra items such as keys, phone, gels or small jacket. Self-bound seams give superior durability 4 way stretch mesh provide stability and comfort Specifications Weight: 4.0 oz / 114 g Includes 2 Custom 300ml Bottles Materials Ultralight Poly Spandex Mesh, 2 Way Stretch Mesh | Ultimate Direction Women's Hydro Tank in Onyx Size Large