Straw Lid is leakproof and makes cold refreshment that much easierCarry loop makes Straw Lid easy to transport and comfortable to carryMade with 18/8 pro-grade stainless steel to ensure durability, pure taste and no flavor transferTempShield insulation keeps beverages cold up to 24 hours and hot up to 12 hoursColor Last powder coat is dishwasher safe, keeping your bottle slip-free and colorfulFits most backcountry water filters