21oz Hydro Flask with Standard Mouth Flex Cap $39.95 White - $39.95 Quantity This product is currently sold out. Take us with you! Whether on your next beach day or hiking adventure. The 21oz Hydro Flask is the perfect travel sized companion. Double-wall vacuum insulation keeps the contents hot for 6 hrs or cold for 24 hrs The inside temperature won't affect the outside temperature of the container Tough, food-grade 18/8 stainless steel is BPA-free and resistant to bacteria and odors
