Designed for mountain bikers, gravel grinders, and all weather roadies Tri-LayerÖ insulation and radiant heat reflective technology keep your liquids cool twice as long, so you can stay cool on long and dusty days in the saddle Features a MuckguardÖ cap cover that protects the SurgeÖ valve from whatever the trail dishes up - opens and closes with one hand - seals valve when closed The high-flow Surge Cap provides a sip or blast of water and self-seals to eliminate spills and splatter, even on your bumpiest rides 100% BPA-free insulated water bottle Crafted in Colorado to reduce environmental impact and support local economies - designed to last, each one of our water bottles comes with a lifetime guarantee. BOTTLE INSUL MUCK BLU 20