WATERPROOF & DURABLE - Permanently heat bonded PUL layer prevents Castor Oil from leaking through and making a mess. Although the pack does not need regular washing, it can withstand up to 300 washings. Hand washing is still recommended.ABSORBENT & SOFT - The soft cotton layer in our compress holds the castor oil in place, while the waterproof PUL layer prevents the oil from leaking through.DESIGNED TO FIT - Our Castor Oil Liver Pack is designed to comfortably fit most adult bodies with its stretch-fit, super soft, and breathable Organic Cotton, and ultra plush elastic straps to secure it around your waist. Uses your own body heat!ORGANIC COTTON POUCH - We've included an Organic Cotton Pouch to store your Castor Oil pack when you're not using it.MADE IN USA - with 100% eco-friendly Organic Cotton Fleece, CPSIA certified and Vegan. Hypo-Allergenic.100% Free of PFOA, PFOS, dioxins, lead, heavy metals & BPA; Free from phthalates: contains no DEHP, DBP, BBP, DINP, DIDP and DnOP.