The Hermès Herbag 31 gives itself away in three places: the heat stamp on the leather flap, the engraving on the metal closure, and the blind date code on the bag itself. A replica usually fails at least one. Because the Herbag is mostly canvas, the leather sections are small and the flaws sit in a tight area, so a close look at those three spots settles most questions in under five minutes.
Hermes Herbag 31 Fake Online: How to Spot a Counterfeit
Before you start
- A 10x jeweler's loupe, or a phone camera with macro mode
- The production year of the bag, so you know which stamp format to expect
- The official Herbag 31 dimensions for a size and weight comparison
- Bright, indirect light and a plain background
Step-by-step checks
- Read the heat stamp on the leather flap. Look for the word mark with its accent, the city, and the country of origin. The letters should be crisp, evenly spaced, and sunk into the leather. A replica stamp looks burned, blurry, or shallow, and the accent mark is often missing or crooked.
- Study the flap stitching. Hermès uses a saddle stitch with linen thread, angled and consistent, with no gaps and no doubled stitches. Count the stitches along a one-inch run and compare the front and back of the flap. A machine lock stitch shows as a flat line on the reverse.
- Inspect the metal closure and any other hardware. The finish should be smooth with no pitting, no chrome shine, and no seams at the edges. Any engraving on the metal runs in line with the part, not stamped at an angle.
- Check the canvas weave. The body is a tight, uniform toile with straight warp and weft lines. Hold it at an angle. A replica canvas shows loose threads, slubs, or a shine that reads as plastic. The canvas color should match the leather trim in tone.
- Find the blind date code. It sits inside the bag or under the flap, pressed into the leather without ink. It pairs a year letter with a craftsman number. Look up the letter for the year the seller claims and confirm the format matches that period.
- Turn the bag inside out. The interior seams should be finished and covered, not raw or frayed. The removable body, where the model has one, should slide out with light resistance, not drop out or jam.
- Weigh and measure it. Compare the width, height, depth, and handle drop to the published specs. Replicas run heavy because the leather is thicker and the metal is not plated to the same standard.
- Check the packing set. The dust bag, box, rain cover, and any paperwork should match the era of the bag. A modern dust bag with a vintage bag is a mismatch worth a second look.
Common replica tells
- Heat stamp with a missing accent or uneven pressure across the letters
- Stitching that runs straight on one side and flat on the other
- Hardware that feels light and warm, or engraving cut off at the edge
- Canvas with a plastic sheen and visible slubs in the weave
- Date code format that does not match the claimed year
- Flap leather that is stiff and dry, or that creases with a white line
If one check fails
One soft result is not proof on its own. Two failures across different materials are. Photograph the stamp, the date code, and the closure at high magnification, then ask the seller for the original purchase year. If the answers do not line up with the stamps, walk away and keep the photos for your own reference set.