Try out a sample from our sample packs! Our 100% Compostable Bubble Mailers provide durable, eco-friendly protection with a recycled kraft exterior and cornstarch bubbles that fully biodegrade in 180 days. Customize these sustainable mailers from 5,000 units. Stock Sizes: 4 x 8" (Internal Dimensions - 3" x 8") Case Size - 600 mailers 6 x 10” (Internal Dimensions - 5.22” x 10”) Case Size - 400 mailers 8.5 x 12” (Internal Dimensions - 7.72” x 12”) Case Size - 200 mailers Custom Options: Fully custom size, print, and tear strips Certifications: TUV, ABA