100% Polyester REUSE AND REDUCE WASTE – Bumkins reusable cloth snack bags are made from our original waterproof fabric with zippered closure; not just for lunch, they make excellent organizers for storage and travel; stash inside purse, diaper bag, or travel bag ABOUT OUR ORIGINAL FABRIC – 100-percent polyester with embedded TPU for waterproofing; although fabric is waterproof, bags are not completely leakproof due to zippered closure SAFETY TESTED – At Bumkins, we use 3rd party labs to ensure the products we manufacture comply with CPSC and CPSIA standards for BPA, Lead, and Phthalates EASY TO CLEAN – Our fabric is wipeable, machine washable and dishwasher-safe (top rack); turn inside-out to wash; to extend the life of our reusable bags, we recommend air drying our quick-dry fabric ABOUT BUMKINS – For over 30 years, Bumkins has been creating thoughtful and responsibly made essentials for babies and kids, making parenting easier so families can cherish those special moments; we are based in Phoenix, AZ