The Breakaway Surge's beauty is its simplicity. The lightweight performance design starts with our Surge Cap - self-sealing, it delivers high-flow hydration on the move. The bottles are slim and ergonomic to fit comfortably and securely in your hand and cage, and the ultrathin side walls make squeezing easy, so focus stays on the ride, not the bottle. Max flow surge valve technology maximizes flow rate and self-seals to eliminate leaks and splatter during activity Easy squeeze flexible, ultra-light materials and the unique grip groove combine for a sure hold and high-flow squeeze Streamlined minimalist single-wall design sheds grams and delivers maximum flexibility Fuel guage, the full length fuel gauge window lets you see what's left with a quick glance. You always know when you need to fill up or are free to keep your pace Built for bikes, made with bicyclists in mind, the Breakaway bottle fits a variety of Bike frame sizes and bottle cages Specifications Bottle TypeBikeMaterialPlasticColorGrayVolume25InsulatedNoDefined ColorGray