Tyvek (insert trademark "R") Sendables ("TM" trademark symbol) are printed using linseed and soybean oil-based inks. Foam liners are make from 100% recycled resin. Available with foam padding in case packs of 120 or without foam padding in case pack of 100. Tear, puncture and water resistant, to tape or cutting necessary. Approved for shipped via UPS or FedEx. Made in the USA.