21oz (621mL) Standard Mouth Flex Cap Lunch Boxes keeping drinks cold or hot

keeping drinks cold or hot for hours

cushioning and ventilation

lightweight design featuring trusted Hydro Flask insulation

Hydro Flask®

then slides open wide enough for easy drinking and reusable straws

21oz (621mL) Standard Mouth Flex Cap Lunch Boxes keeping drinks cold or hotYour daily sip. Stainless steel and cupholder compatible, the reusable, refillable 21 oz Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to 12 hours, and holds enough hydration for hours of fun. 24 hours cold, 12 hours hot TempShield double wall vacuum insulation Leakproof when closed Pure taste, no flavour transfer Durable stainless steel Fits most cupholders BPA Free Dishwasher safe Not for use on a