Don’t miss a sip. Use just one hand to keep hydrated no matter how deep in the woods you get. Take your swigs while on the go with the first insulated sport cap for Hydro Flask Standard Mouth Bottles. This Insulated Sport Cap is made to keep each sip in your Hydro Flask bottle refreshingly ice cold.

• Compatible with all Standard Mouth Bottles
• Insulated to Maintain Temperature
• Quiet, "No Whistle" Valve
• BPA-Free and Phthalate-Free
• Not for Use with Hot Liquids
• Not Leakproof
• Hydro Flask Lifetime Warranty