Our best selling Body Bottle 500 updated with new PEEVA(TM) taste-free material and a more ergonomic shape. Features New ergonomic shoulder design for more comfort on body New PEEVA(TM) material is taste free Collapses fully to a tiny size when empty Fits any Vest, Vesta, or Waistbelt Specifications Weight: 35 g / 1.2 oz Volume: 500 ml / 17 oz Materials PEEVA(TM), an FDA-approved, BPA-free laminate of polyethylene and ethylene-vinyl acetate | Ultimate Direction Body Bottle II 500