Safer Products for Healthier Athletes Stays Cold 18+Hours Free of BPA, BPS, Lead, PET, Phthalates, PVC and Biologically Harmful Chemicals Stays Hot 4+ Hours Thinksocial Non-Profit Arm Third Party Tested Certified B Corporation 18/8 Stainless Steel - 304 Medical Grade Features: Easy to drink sprout Wide mouth, collar Internal mesh filler (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 Create to address the growing concern of harmful chemicals leaching from consumer products. Think sport works with leading scientists and safe materials to create safer solutions.