Stays Cold 18+ Hours Stays Hot 4+ Hours Safer Products for Healthier Athletes Free of BPA, BPS, Lead, PET, Phthalates, PVC and Biologically Harmful Chemicals Made of Medical Grade 304, 18/8 Stainless Steel Certified B Corporation Third Party Tested Created to address the growing concern of harmful chemicals leaching from consumer products. Thinksport works with leading scientists and safe materials to create safer solutions. Features: Easy to drink spout Wide mouth, collar Internal mesh filter (removable) No bottle sweat Double-walled & vacuum insulated Medical grade 304, 18/8 stainless steel Handle for easy carry Free of BPA, BPS, lead, PET, PVC, phthalates and biologically harmful chemicals Dishwasher safe