Mask Alternative - Breathable, Comfortable, Clean Sleeve made right here in Plainfield, New Jersey - keeping small business alive and running. 100% made in Plainfield, NJ - Machine Woven- Not FDA approved in any way. Material is pre-washed, stretchable, made of 50% polyester, 30% acrylic, and 20% nylon. I've been wearing those hot, and uncomfortable masks for the last couple of weeks, this one is much more comfortable. Material is woven in a continous sleeve, and hand cut every 12" - Then, doubled up, and slipped over head. Non-returnable item. We have modified the original mask; as our feedback from customers wanted it physically longer, so new part# then last week.