High-flow Surge valve provides a sip or a blast of water and self-seals to eliminate spill and splatter on your bumpiest rideSpill-proof when open and pushes closed for leakproof transportEngineered cool, Tri-layer Insulation takes Polar Bottles recognized radiant heat reflective technology to the next level, keeping your bottle way cooler, 2X longer Unique grip groove and wall design makes it easier to squeeze Bottle shape and size is compatible with most bike cagesRemovable nozzle for easy cleaning & dishwasher safe100% BPA free & food safeMindfully manufactured in ColoradoLifetime warrantyInsulatedCharcoal/White Dawn/Dusk24oz