Bottle features a wide opening for convenient filling and adding sports drink mixes or ice. Easy-grip screwcap with a large, grooved surface making it easier to tighten and remove. Tapered bottom allows the bottle to be easily slipped in and out of bike bottle cages.Capacity650ml - Bottle features a wide opening for convenient filling and adding sports drink mixes or ice. Easy-grip screwcap with a large, grooved surface making it easier to tighten and remove. Tapered bottom allows the bottle to be easily slipped in and out of bike bottle cages.Capacity650ml