Grey Mailing Bags 14×21" (356×533 mm) – Self-Seal Recycled Postal Bags Property_Adhesive/Hot-melt (Permanent) Material: 100% recycled LDPE (resin

Material: 100% recycled LDPE (resin code 4)

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

Mailing bags reduce dead weight and parcel size compared with boxes

Pack of 100 – new sellers & trial use

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

Grey Mailing Bags 14×21" (356×533 mm) – Self-Seal Recycled Postal Bags Property_Adhesive/Hot-melt (Permanent) Material: 100% recycled LDPE (resinGrey 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