100% BPA Free for heath-safety: High-quality food grade 18/304 stainless steel on both inside and outside walls.This FDA approved will never rust or leave a bad metal taste in your mouth.Scratching resistance, Eco-friendly, non-toxic, shockproof,leak-proof,rust proof, double wall, no sweat, no condensation on your desk any more.Stay cool or keep warm :Unique double walled vacuum insulation technology with vacuum-seal cap keeps your drink cold for up to 24 hours or hot up to 12 hours.What a surprise! Enjoy all kinds of cool and fresh in summer, enjoy the warmth in cold winter. Suitable for cold water, Iced Coffee,hot drinks, hot coffee, hot chocolate,etc. Perfect for office workers,students,sports,outdoor enthusiasts, breast-feeding mothers, etc.Specially designed cap to prevent spills: Wide drip-free mouth opening for ice cube insertion (mouth:3.4cm) and easy to drink. Lightweight design, fashion cola style,easy and comfortable hold in hand and drink.Easy to carry and easy to clean : Perfect size for your gym bag, car, bicycle and backpack to enjoy your long hikes, sports, go to work, go to beach, school, office, picnic, hiking, camping, cycling,road trips, eat lunch out, on the road for soup, traveling, trip, driving, mountaineering, backpacking, hot yoga, gym, fitness.Fashion pure color design: The most popular,current and fashionable colors is for you. A slight sparkle brings all of these colors to life! It also can be a sweet and love gift for your family, lover and friends.