Polar Bottles Breakaway Insulated Jersey Knit Water Bottle - Charcoal 20oz. The Polar Breakaway Insulated bottles feature Tri-Layer insulation with a heat reflective layer keeping liquids cooler 2x longer than standard bottles. The Surge valve maximizes flow self seals to be spill proof and pushes closed for leak-proof transport.

Surge valve maximizes flow rate and self-seals to eliminate spills and splatter

Valve pushes closed for leakproof transport