Hydro Flask Flex Cap 21 oz

+ TempShield double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12 + Flex Cap is leakproof when closed + Honeycomb™ Insulated Cap for maximum temperature retention + Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer + Color Last™ powder coat is durable, sweat-free and colorful + BPA-Free + Dishwasher safe + Not for use on a stove, in a microwave or freezer + Keep hot liquids out of the reach of children Hydration on the go just got easier with the leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.