A friend dropped in a pair of shoes for repair last weekend. They’d been lent to an unnamed person, who warmed his feet by/in the fire while wearing them. The left shoe was fine, the right sole had shrunk in the heat, cracked and then charred. I could see the innersole had also been damaged through the crack in the sole.
Most re-enactment shoes are simple turn shoes, the process of replacing a sole is exactly the same as making the shoe in the first place. Early modern shoes are different, with multiple structural layers that need to be addressed separately. In many cases, machine sewn repros have so many compromises that it’s often quicker and cheaper to just replace them. This pair were different, they were hand sewn, properly constructed using correct early modern techniques and materials. I’ve listed the steps I followed to repair the damage in case you want to fix a pair too.

Remove the sole
Carefully cut the stitches holding the sole to the welt. I start in the instep, just because. I’m replacing both soles as I can’t match the existing sole leather; nothing available in my area is the right thickness. After cutting the threads, I worked the small pieces of thread from the holes in the welt using a large, coarse needle.
Hopefully, the innersole isn’t too badly damaged and can just be repaired. If you need to replace the innersole, you’ll need a matching last or make a stitching stand. This may be the point where you have to decide replacing them instead of repairing is a better investment.
Repair damage
Fortunately, I was able to smooth out most of the ridges by soaking with water and then hammering from the centre outwards on a metal last.

I then glued a parchment piece to cover the splits, hopefully preventing them from opening up while the wearer walks. Normally this would be done with a wheat paste but the soles on this pair were attached with a modern adhesive and the wheat paste just sat on the surface. I ended up using modern contact adhesive instead. The parchment is a piece of kangaroo rawhide I stretched and scraped earlier. The edges of the patch were sanded to feather them out to the sole so there are no ridges inside or outside the shoe.

Make the new soles
I cut the new soles from crusted sole leather with a coping saw. Knives, bandsaws or industrial lasers are other acceptable methods. I tend to cut a few millimetres ( to ⅛”) larger so I have some latitude when gluing the sole on. The payback is that I then have to trim it to fit. Modern sole leather is produced from veg tanned butts using water, heat and rollers, back to around the 15th century it was made using water, heat and hammering. The end product is much the same.
Once cut, soak them in water for a short while and then bend them to match the shape of the shoe. I find the best result then is to let them dry in place on the shoe, held down with weights. Let them dry, then glue them in place. The glue doesn’t have to be particularly strong, it’s just to stop the layers moving against each other when the shoe is finished. Shear strength is the main requirement. Again, I used contact cement this time. Carefully trim the edges to match the welt if you went oversized. Sharpen and hone your knife first.
Sew
I plied up a couple of 25/3 threads to match the thickness of the original thread and attached boar bristles to either end. The thread thickness is important to make sure that the existing awl holes in the welt are completely filled. I’m sure I did a post about making coad some time ago but I can’t find it, so maybe it was Staple.

Dampen the leather and cut a slit in the sole leather for the thread to lie in. The slit needs to be about 6mm / ¼” from the edge. It helps if you lean the knife over a little towards the middle of the sole as you make the cut so that it aligns with the awl path. The distance from the edge doesn’t matter so much, as long as you are consistent. Try working the awl through the sole from the welt and see how far in the point comes out as a guide. Set a pair of dividers to that width and mark a line on the sole for your knife to follow.

Sew the sole to the welt. Aim the awl at the bottom of the slit you cut. You’ll get better at it with more experience. Pushing an awl through sole leather takes some effort. Keeping the slit and edge of the sole wet helps. Be careful not to bend your awl, and keep your other hand and body away from where a broken awl would go.

Once the sole is sewn, put the shoe on a metal last, wet the leather around the edge and hammer the slit and awl holes closed. A cobbler’s hammer is best but any round-faced hammer will do.

Set that aside to dry. Once it’s dry, you can pare the edge of the sole to match the welt. Then wet the edge and burnish with a piece of bone. I use a bone folder, but any bit of bone will do, I used to use a bone from a lamb roast.

Finish by stuffing1 the leather with dressing. As usual, I used Baker’s fine concoction.

- In the sense of working as much dressing into the leather as it will take, not the Australian vernacular version. Unnamed Troy already did that at the start. ↩︎
Addendum
I finally found the post I was looking for, but it was about pitch rather than coad. The link is here if you are interested.
Company of the Staple did a blog post on their experiences as well as the video, it’s on their website.
Scott Perkins also has a recent post on his experience making coad. Scott works in US customary units, Staple and I work in an inconsistent mix of metric and Imperial units so there may be some differences in our raw amounts. Work in your units of comfort and concentrate on the ratios of ingredients rather than raw numbers.





