Evri (formerly Hermes) is one of the most widely used courier networks for UK resellers due to its integration with Vinted, eBay, and Etsy. However, understanding Evri’s size thresholds is vital to avoid unexpected surcharge fees when dropping off parcels at ParcelShops.
Evri Postable Tier
Evri’s Postable tier is specifically designed to slide through standard UK domestic letterboxes:
- Max Dimensions: 350 mm x 230 mm x 30 mm
- Max Weight: 1 kg
- Best Mailer Size: 9″ x 12″ (229 mm x 305 mm) co-extruded grey mailer.
- Advantage: Offers 5mm more thickness allowance than Royal Mail Large Letter (30 mm vs 25 mm).
Evri Small Parcel Tier
If your garment is too thick for letterbox slots (e.g., jeans, thick jumpers, light boots):
- Max Dimensions: Combined length and girth must not exceed 245 cm (longest side max 120 cm).
- Max Weight: 2 kg or 5 kg depending on label selected.
- Best Mailer Sizes: 10″ x 14″ (254 mm x 355 mm) and 12″ x 16″ (305 mm x 406 mm).
Evri Medium & Heavy Parcel Tiers
For winter coats, multi-item bundles, or footwear in shoeboxes:
- Max Weight: Up to 15 kg.
- Best Mailer Sizes: 16″ x21″ (355 mm x 483 mm) or larger heavy-duty mailers.


