Imitating the charm of raw materials and natural fibers that can be found in the world’s most picturesque forests, the Wood Collection, featured in a smooth matte finish, resembles mixed distressed woods. S'well bottles feature triple-walled, vacuum-insulated construction, designed to keep beverages cold for up to 24 hours or hot for up to 12. Made from 18/8, food-grade stainless steel with superior construction that allows for refilling and reusing easily to reduce the need for single-use plastic water bottles. Copper wall layer creates a condensation-free exterior that won't sweat on your hands or in your bag. 9 ounce size is perfect for on-the-go and fits snugly inside handbags and lunch bags or boxes. BPA Free and reusable, hand wash only, dimensions are approximately 7.89 x 2.64 inches, weighs 0.50 lbs empty.