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The short answer
Use a courier bag for soft, unbreakable products such as clothing, textiles, books and pouches. Use a corrugated box for anything that can be crushed, bent or broken, such as cosmetics in glass, electronics, boxed gifts and rigid items.
Why courier bags suit soft products
- Lighter: a bag adds almost nothing to the parcel weight, and courier charges follow weight or volume.
- Faster to pack: fold the product in, peel and seal — no tape, no folding a carton.
- Tamper evident: the permanent seal shows if the parcel was opened in transit.
- Waterproof: LDPE film keeps rain and moisture out, which paper and boxes do not.
Why boxes suit fragile or rigid products
- Crush resistance: 3 ply corrugated board has a fluted middle layer that absorbs knocks and stacking pressure.
- Shape: a box keeps rigid items from bending or poking through packaging.
- Presentation: a box holds a product and its inserts in place for a neater unboxing.
Using both together
Many sellers put a small box inside a courier bag: the box protects the product, and the bag adds a waterproof, tamper-evident outer layer and a place for the invoice. Pick a box that fits the product snugly, then a bag an inch or two larger than the box.
Our corrugated boxes come in 22 sizes, delivered flat in packs of 25, and our courier bags in 13 plain sizes — so the same order can cover both.