High-quality food grade PP plastic, 100% BPA Free for heath-safety. Specially designed with a rubber ring to prevent spills, leaking or sweat.

Standard drip-free mouth opening(mouth 1.8") for ice cube insertion, easy to drink and clean.

Unique double walled vacuum insulation technology with vacuum-seal cap keeps hot up to 6 hrs and cold up to 8 hrs.

Portable design, perfect for carring into your gym bag, car, bicycle and backpack to enjoy your long hikes, trekking, hot yoga class, long load trip, or any other outdoor activities.

Durable construction and re-usability, eco-friendly choice, instead of in plastic which is bad for the environment and leaches into bottles.