21oz STD Mouth Flex Straw Black SPRING 2020 Removable PORON® XRD™ impact absorbing

Removable PORON® XRD™ impact absorbing insole

Hardface fleece cuffs

Cushioned midsole for comfort

Velcro closure at the ankle with a buckle look for easy on and off

dual-density

21oz STD Mouth Flex Straw Black SPRING 2020 Removable PORON® XRD™ impact absorbingKeep life moving with the 21oz bottle and Standard Flex straw by HYDRO FLASK. It stashes easily into a small shoulder bag, your packs side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles. Details The unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so