Klean Kanteen Water Bottle Loop Cap - KK-KCPPL-BK Leak-Proof Seal Handy attachment loop Dishwasher Safe Safe, Durable, High Quality Materials No BPA, No Lead, No Phthalates No BPA, Phthalates, lead or other toxins Made from BPA-free polypropylene (PPNo.5) Use a D-Ring to hook onto backpacks, bags and belts to take your Klean Kanteen wherever you go Easy to clean and dishwasher safe Designed with athletes and multi-taskers in mind