100 Bags #2 8.5" x 12" Waterproof Poly Padded Bubble Mailing Envelopes Bags 8.5x12 2.5 millimeter thickness, Recyclable: Yes. Water Resistant, Lightweight and Padded Interior. Color: White/Grey, Paper Liner: Clear with antistat. Lip Size: 1.5 +/- , Bubble Lining: 3/16. Usable Dimensions: 8.5" x 11", Outer Size: 9.5" x 11" + 1.57".