Hydration * | Hydro Flask Sport Cap Standard Mouth Black

From Mountain Trails To Morning Yoga Class, Our Standard Mouth Insulated Sport Cap Lets You Hydrate One-Handed And On The Fly. It’S The First Insulated Sport Cap Specifically Designed To Keep Water In Your Hydro Flask Bottle Ice Cold, Sip After Sip.

• Compatible With All Standard Mouth Bottles
• Insulated For Enhanced Temperature Protection
• Quiet, “No Whistle” Valve
• Bpa-Free And Phthalate-Free
• Sport Cap Is Not Intended For Use With Hot Liquids And Is Not Leakproof