Grey Mailing Bags 14×21" (356×533 mm) – Self-Seal Recycled Postal Bags Property_Adhesive/Hot-melt (Permanent) Mailing bags reduce dead weight

Mailing bags reduce dead weight and parcel size compared with boxes

and press out excess air before sealing to keep parcels compact

Recyclable LDPE (code 4) — remove the glue strip before recycling

move up to 14×21" to keep seals strong and avoid stretching

Pack of 300 – regular online sellers

Grey Mailing Bags 14×21" (356×533 mm) – Self-Seal Recycled Postal Bags Property_Adhesive/Hot-melt (Permanent) Mailing bags reduce dead weightGrey Mailing Bags 1421" (356533 mm) are designed for larger apparel, outerwear and textile orders that need more depth without the bulk of a box. Made from 60 micron co extruded LDPE, these self seal mailing bags are opaque for privacy, water resistant for courier handling, and fully recyclable across UK soft plastic schemes. Ideal for sellers using Royal Mail Small Parcel and major courier networks. Need a different fit? See all sizes or browse the