Tyvek Padded Mailing Envelope - Bright Stars - Large 12" x 16" w/o foam - 11"x 15.5" with foam insert (inner dimension) - Medium 10"x12.5" w/o foam - 9" X 12" with foam insert (96 pcs) Protects contents with foam padding - Tear, Puncture, & Water resistant - Top peel & seal closure, No tape or cutting necessary *Foam liners are made from 100% recycled resin.