food grade single wall stainless steel new PP#5 plastic lid,100% BPA free FDA report by SGS dish-washer safe spary-print ... the water eacape. Eco-friendly,BPA free,extremely resistant. With portable carabiner,suitable for mountain climbing ,hiking and other sports. ... BPA substance,the PP are food-grade antibacterial plastic.3.Can be coupled with Carabiner,easy for carrying.4.No insulation function ...