The ml Solsticease 750ml Stainless Steel Water Bottle has double wall vacuum insulation to keep drinks hot for up to 6 hours and cold for up to 18 hours. Each Ocean Bottle collects 1, 000 plastic bottles to improve livelihoods in coastal communities. The bottle contains recycled stainless steel and recycled ocean bound plastic and is NFC Smart Chip enabled to collect more plastic with every refill. The dual opening makes it easy to clean and fill the bottle, and the anti leak lid has an easy carry loop. The bottle is dishwasher safe and BPA free. Presented in a responsibly sourced recycled cardboard gift box.