Grey Mailing Bags 13×19" (330×483 mm) are one of the most versatile mid-large sizes for UK e-commerce shipping. They offer generous space for folded apparel, boxed gifts, and A4+ documents while keeping postage weights low. Made from 60-micron co-extruded LDPE, these self-seal mailing bags are water-resistant, opaque, and recyclable — ideal for fast dispatch through Royal Mail Small Parcel and all major UK couriers.

Need a different fit? See all sizes or browse the full Mailing Bags range.

Why 13×19" is a UK best-seller

This mid-large format bridges the gap between 12×16" and 14×21", giving extra capacity for hoodies, jeans bundles, boxed apparel, gift sets and A4+ packs without tipping into heavier postage bands. Its neutral grey finish keeps parcels private and professional, resisting scuffs and marks through courier handling.

Who it’s made for

• Apparel & fashion: hoodies, tracksuits, stacked tees, jeans bundles.
• Shoes & accessories: compact footwear boxes, belts, scarves, caps.
• Home & textiles: cushion covers, towels, bedding, throws.
• Retail & subscription brands: beauty boxes, lifestyle kits, A4+ orders.
• Marketplace sellers: eBay, Amazon, and Shopify merchants shipping mixed-size orders daily.

Wholesale Mailing Bags for High-Volume Businesses

These 13×19" grey mailing bags are supplied in trade quantities and designed for businesses that dispatch larger clothing items and bulkier parcels every day. A popular choice for e-commerce warehouses, fulfilment centres, fashion brands, Amazon sellers, eBay stores and Shopify retailers, they provide a reliable and cost-effective solution for high-volume shipping.

Each box contains 1,500 mailing bags, helping businesses reduce packaging costs, minimise reordering and maintain consistent stock levels throughout the year.

The generous 13×19" size is ideal for jackets, coats, hoodies, knitwear, multiple garments and larger boxed products. Whether you're shipping hundreds of orders each week or preparing for peak periods such as Black Friday, Christmas or seasonal sales, buying in bulk delivers better value, faster packing and a more efficient fulfilment operation.

Fit & packing guidance

• Best fit: hoodies, jeans, compact shoe boxes, multi-item clothing, boxed gifts.
• If it’s slimmer: step down to 12×16".
• If it’s bulkier: step up to 14×21".
• Corner care: pad inner box edges to reduce punctures.
• Press out air: remove trapped air so parcels stack neatly and labels adhere well.

Key benefits

• Self-seal strip — fast and tamper-evident closure.
• 60-micron co-extruded film resists splits, punctures, and scuffs.
• Water-resistant to protect orders in wet weather.
• Opaque grey — privacy and clean presentation.
• Lightweight — reduces postage costs versus boxes.
• Recyclable LDPE (code 4) — remove glue strip before recycling.

Eco & materials

Material: 100% recycled LDPE (code 4), co-extruded for opacity and strength. Recyclable in most UK supermarket soft-plastic schemes. Not biodegradable or compostable.

Strength & protection

60-micron film offers puncture and tear resistance. The self-seal adhesive forms a permanent bond, protecting parcels from opening or moisture during delivery.

Storage & performance

Store flat between 13–21 °C away from direct heat or sunlight. Let cold stock reach room temperature before sealing for best adhesive strength.

Size comparison (find the right fit)

Keep 12×16" for smaller apparel and 14×21" for larger items to reduce void space and optimise postage.

Packing tips

• Fold garments neatly; avoid sharp folds that strain the film.
• Use a light inner sleeve for dusty or powdered goods.
• Apply labels smoothly for reliable barcode scans.
• Add paperwork in a clear document wallet outside the bag.

Build a complete packing setup

Pair your grey mailing bags 13×19" with packaging tape for inner boxes, document wallets for invoices, and cardboard boxes for rigid shipping needs. For eco-coloured alternatives, see our Coloured Mailing Bags.

Buying guide: choosing between 12×16", 13×19" and 14×21"

If you’re sending hoodies, jeans or mid-weight boxes, 13×19" is the sweet spot. It offers more depth than 12×16" without oversizing postage bands. For A4+ documents or light parcels, 12×16" fits best. For stacked apparel or bulky boxes, move up to 14×21" to keep seals strong and avoid stretching.

Common searches

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