Advanced 316 Stainless Steel Construction: for maximum resilience against wear and tear, 32 oz insulated water bottles keep your drinks pure and fresh all day The wide mouth water bottle design makes it easy to add ice cubes and simplifies cleaning TempStable Technology: uniquely combining 316 stainless steel, an extra copper layer, and vacuum insulation to extend temperature retention. Black water bottle keeping beverages cold for up to 30 hours or hot for up to 16 hours Versatile 3 Lid Options: Auto Spout Lid for one-handed operation, Straw Lid for easy sipping, and Handle Lid with a small storage container for secure and convenient portability Silicone Boot for Extra Protection: safeguard your steel water bottle from potential damage, making it a practical companion for outdoor adventures or gym sessions Gift-Ready Packaging: no need to search for a separate gift package - present this stainless steel water bottle 32oz to your loved ones right in its stylish box. Ideal gift for boyfriend Certified BPA-Free: Rest easy knowing your insulated water bottle 32 oz is not just robust but also BPA-free, confirmed by our certification