The 21 fl. oz. Thiirst HydroFlask Sport Cap standard mouth vacuum water bottle is the first insulated sport cap on the market. Its patent-pending design allows superior water flow and insulation in the cap.
Details
Ergonomic shape ensures 1-handed ease while drinking and carrying
TempShield™ double-wall vacuum insulation keeps contents cold up to 24 hrs. or hot up to 6 hrs.
Stainless-steel construction is BPA-free and features a proprietary powder coat
