1.Stainless Steel
2.High-quality food grade 18/304 stainless steel on walls, scratching resistance, 100% BPA Free for heath-safety.
3.Unique double walled vacuum insulation technology with vacuum-seal cap keeps your drinks cold for 9 hrs and hot for up to 18 hrs.
4.Lightweight design, perfect for your gym bag, car, bicycle and backpack to enjoy your long hikes, trekking, hot yoga class, long load trip, or any other outdoor activities.
5.Specially designed cap to prevent spills, wide drip-free mouth opening for ice cube insertion (mouth:1.42") and easy to drink.
6.Fashion pure color design, looks cool, you will love it yourself and want to gift it to family and your friends.

7.Perfect Size:capacity is large enough to fit your daily hydration needs. You can also store milk or coffee. The stainless steel repels any lingering flavors. Put your portable sports water bottle in your gym bag, backpack or briefcase as your daily companion. Can also fit in most auto cup holders.