Purple Mailing Bags 12×16" (305×406 mm) made from 60 µm, 100% recycled LDPE (code 4). These premium self-seal postal bags are moisture-proof, water-resistant and fully opaque for privacy. Built for daily e-commerce use with a fast, permanent seal, they give a stronger, smarter look than standard grey mailers.

Used by clothing brands, subscription services, fulfilment centres and online sellers who want packaging that looks professional and protects orders in transit.

Not the size you need? See all sizes.

Why this 12×16" size?

Compared with 10×14", 12×16" adds both width and length so bulky garments and small boxed items fit without stretching seams or crumpling the seal. It’s a reliable “daily driver” for hoodies, jeans, joggers, knitwear and gift sets. The bold purple finish upgrades presentation on Shopify, Etsy, TikTok Shop, Amazon and eBay without paying for custom print.

Real use examples

• One hoodie or a pair of jeans (folded), or a 2–3 tee bundle
• Joggers, knitwear or light outerwear with tissue
• Small retail box or gift set (use corner pads for sharp edges)
• Accessories, beauty sets, merch and subscription packs

Fit & packing guidance

Best fit inside: up to approx. 285×380×60 mm. If the adhesive lip lands on a bulge, step up to 15×18". For slimmer items (single tee or paperback), step down to 10×14". Add simple corner pads for boxed goods, and press out excess air before sealing to keep parcels compact and postage-friendly.

Key benefits

• Premium strength 60 µm co-extruded film resists tears and punctures
• Moisture-proof / water-resistant protection for everyday courier handling
• Fully opaque purple for privacy and a clean, branded look
• Fast peel-and-seal – permanent, tamper-evident bond, no tape needed
• 100% recycled LDPE (code 4) – recyclable at carrier-bag return points
• Lightweight – reduces parcel weight versus cartons for lower postage

Available pack sizes

Choose the right volume for your workflow:

• Pack of 100 – starter volume for boutiques and small sellers
• Pack of 300 – efficient for regular weekly dispatch
• Pack of 500 – popular for growing online stores
• Pack of 1000 – best unit cost for high-volume fulfilment

These bulk options are ideal for Shopify, Etsy, Amazon FBA, TikTok Shop and warehouse dispatch operations.

Specifications

Eco & materials

Made from 60 µm, 100% recycled LDPE (code 4). Recycled film offers reliable strength with a lower material footprint than virgin plastic of the same gauge. These bags are not biodegradable or compostable; please recycle with carrier-bag return schemes where available.

Strength & protection

Engineered co-extruded film gives a tough, scuff-resistant outer and a secure inner layer. The permanent adhesive creates a tamper-evident seal that stays shut through sorting and transit. The deep purple film is fully opaque to protect buyer privacy and improve brand look on arrival.

Storage & performance

Store flat at 13–21 °C away from heat or direct sun. If stock arrives cold, allow to acclimatise to room temperature before use for best sealing performance.

Lightweight = lower postage

Mailing bags reduce dead weight and parcel size compared with boxes, helping you stay within cheaper bands with Royal Mail, Evri, DPD and other couriers. Use a slim inner box only when edge protection or presentation requires it.

Size comparison

Packing tips

• Fold garments to a neat rectangle; keep the seal area flat
• Expel air before sealing to reduce postage size and weight
• Add card/bubble only for sharp corners or retail presentation
• Use a document wallet for external paperwork

Other Sizes Available 

Same colour sizes: 10×14" • 15×18"
Related ranges: Mailing Bags • Document Wallets • Packaging Tape • Cardboard Boxes

Order today for fast UK delivery and dependable, professional packaging.

Frequently Asked Questions