... the water eacape. Eco-friendly,BPA free,extremely resistant. With portable carabiner,suitable for mountain climbing ,hiking and other sports. Advanced ... on. Features:1.Single layer stainless steel,PP lid with silicone ring and carabiner2.Didn't have any BPA substance ... PP are food-grade antibacterial plastic.3.Can be coupled with Carabiner,easy for carrying.4.No insulation function,because it is ...