Material: Inner Layer 304 Stainless Steel, Outer Layer 201 Stainless Steel, Cover Made Of Ps Material, With Good Sealing Performance And No Leakage Environmentally Friendly Food Grade Material, Made Of Double-Layer Insulation Structure. It Can Keep Water Or Beverages Warm And Cold For Several Hours, Ensuring No Odor, So You Can Ensure Long-Term Use Innovative Leak Proof Lid For Easy One Handed Drinking. It Has An Innovative Hinge Lock That Helps Maintain Sufficient Moisture During Exercise. The Lid With A Lifting Ring Is Easy To Grip And Use, Making It Easy To Carry Whether You Are At Home, Going To The Gym, Hiking Or Traveling, This Bottle Is The Ideal Companion To Meet Your Hydration Needs. It Is Suitable For Outdoor Activities, Sports, Commuting, Camping, Etc. It Is Also The Perfect Gift For Friends And Family It Is Recommended To Wash By Hand With Clean Water And Do Not Use Alcohol Containing Detergents To Avoid Damaging The Pattern