The 500 ml Ocean Bottle has vacuum insulation to keep drinks hot for up to eight hours and cold for up to eighteen hours. Each Ocean Bottle is entirely carbon neutral and 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. Additionally, the Ocean Bottle can be personalized with custom engravings or colors to make it unique to each individual.