S'ip Bottle, 444 ml (15 oz), dino days. The insulated S'ip by S'well Bottle keeps your favourite beverage at your preferred temperature all day long. Sipping on the go has never been easier -- or more fun! The double-walled insulation and high-grade 18/8 stainless steel maintain the original temperature of cold drinks for up to 24 hours and hot drinks for up to 10, plus the bottle remains condensation-free. Bottle top is secure-fitting and leak-free. BPA and BPS Free. By choosing re-usable S'ip by S'well bottles you can help reduce the use of single-use plastic products that pose a threat to our environment. S'well is proud to support charity partners that seek to protect our environment, bring clean water to the world's most vulnerable communities, and fund research to live longer, healthier lives.