From mountain trails to morning yoga class, our Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. Its the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip.

Please note: This lid is not leak proof

Making a difference

• Reusable
• Reduce landfill from single-use plastic water bottles
• Plastic-free
• Non-toxic

Features

• Compatible with all Standard Mouth bottles
• Insulated for enhanced temperature protection
• Quiet, “no whistle” valve
• BPA-Free and Phthalate-Free

About

Founded in 2009 in Bend, Oregon, Hydro Flask is the award-winning leader in high-performance insulated products.Inspiring an active and joyful life on the go, Hydro Flask innovations showcase TempShield double-wall vacuum insulation to lock in temperature, 18/8 stainless steel ensuring pure taste, durability and ergonomic design.