Finding the right leather for purse straps can be surprisingly tricky when you're trying to balance long-term durability with how the material actually feels against your shoulder. If you've ever had a strap stretch out until it's useless or, worse, snap right at the rivet point, you know that not all leather is up to the task of carrying a heavy bag.
When you're making or repairing a bag, the strap is arguably the hardest-working part. It's under constant tension, it gets rubbed against your clothes, and it's exposed to the oils from your skin and the elements outside. You need something that won't just look good on day one but will actually hold its shape after six months of daily use.
Why Veg-Tan Is Usually the Go-To
If you ask most leatherworkers what they prefer, they'll almost always point you toward vegetable-tanned leather (often just called veg-tan). This stuff is the gold standard for a reason. Unlike chrome-tanned leather, which is chemically processed to be soft and floppy right away, veg-tan is tanned using natural tannins from tree bark.
The result is a piece of leather that's much firmer and has very little "give." That stiffness is exactly what you want for a strap. If you use a soft, stretchy garment leather for a strap, it might feel nice at first, but within a month, it'll be two inches longer and half as wide as it started. Veg-tan stays put. Plus, it develops that incredible dark patina over time that everyone loves. It starts out a pale biscuit color and eventually turns into a rich, deep mahogany just from being handled.
Bridle Leather: The Luxury Choice
If you don't want to spend time dyeing or finishing raw veg-tan yourself, bridle leather is probably your best bet. It's essentially a high-quality veg-tan that has been "stuffed" with waxes and oils during the tanning process.
Because it was originally designed for horse harnesses and bridles (hence the name), it's incredibly strong and weather-resistant. It has a smooth, waxy finish that feels expensive and doesn't need much work. You just cut your strip, burnish the edges, and you're basically done. It's a bit pricier than standard hides, but for a strap that's going to take a beating, it's worth the extra few dollars. It doesn't bleed color onto your white shirts, which is a massive plus that people often forget to consider.
Understanding Weight and Thickness
In the leather world, thickness is measured in ounces. One "ounce" is roughly 1/64th of an inch. When you're picking out leather for purse straps, you really want to stay in the 5 oz to 8 oz range.
Anything thinner than 5 oz (about 2mm) is going to feel flimsy and might start to curl at the edges. If you go much thicker than 8 oz, the strap becomes so stiff that it won't comfortably contour to your shoulder, and it'll be a nightmare to sew through if you're using a domestic sewing machine.
For a delicate crossbody bag, a 5-6 oz leather is perfect. It's light but still has enough structure. For a massive "carry-everything" tote, you'll want to bump it up to a 7-8 oz strap. If you absolutely love the look of a thinner leather but need the strength, you can always stitch two layers of 3 oz leather back-to-back. It's more work, but it looks incredibly professional and gives you a finished look on both sides of the strap.
Latigo Leather for the Outdoorsy Vibe
If you're going for a more rugged or rustic look, latigo leather is another fantastic option. It's a bit of a hybrid—usually chrome-tanned first and then veg-tanned. This makes it a little more supple than pure veg-tan but still very strong.
Latigo is often used for saddlery and outdoor gear because it handles moisture better than most other leathers. It's got a bit of an oily feel to it, which helps it resist cracking in dry climates. The only downside is that some latigo can be a bit "bleed-heavy," meaning the oils and dyes might transfer to light-colored fabrics if it gets wet. Always do a rub test with a white cloth before you commit to using it for a shoulder strap.
Don't Forget the Edges
One thing that separates a DIY-looking bag from a high-end one is how the edges of the strap are handled. Raw edges on a leather strap will eventually fray and look messy.
Since straps are handled so much, you really need to "burnish" the edges. This involves sanding the edge smooth, wetting it (sometimes with just water, sometimes with a compound like Gum Tragacanth), and rubbing it vigorously with a wooden slicker. The friction heats up the fibers and seals them together.
If you're using a chrome-tanned leather that won't burnish (it just gets mushy), you'll need to use edge paint. It's a bit of a tedious process—paint, dry, sand, repeat—but it's the only way to get a clean finish on softer leathers.
The Question of Comfort
We've all had that one bag that looks amazing but feels like a cheese wire cutting into our shoulder. The type of leather for purse straps matters, but so does the width.
A stiff, 8 oz veg-tan strap that is only half an inch wide is going to be painful if the bag is heavy. If you're stuck with a thinner strap design for aesthetic reasons, try to use a slightly softer leather like a milled veg-tan or a heavy latigo. These have a bit more "squish" to them. Alternatively, you can make a "shoulder pad" out of a softer piece of sheepskin or suede that slides along the strap to distribute the weight.
Dealing with "Flesh Side" Mess
The back of a piece of leather is called the flesh side, and sometimes it can be quite "hairy" or fuzzy. If you're making a single-layer strap, that fuzz can rub off on your clothes.
To fix this, you can "paste" the back. You take a bit of burnishing compound and a glass slicker and scrape it along the back of the strap. This flattens the fibers down and gives the back a smooth, almost plastic-like finish. It makes the strap feel much higher quality and prevents it from shedding all over your black sweater.
Hardware Matters Too
You can have the best leather in the world, but if your hardware is cheap, the strap will still fail. When working with heavier leather for purse straps, make sure your D-rings and buckles are solid brass or stainless steel.
Avoid the "pot metal" hardware you find at big-box craft stores; it's usually hollow or made of cheap alloys that will snap under pressure. Also, when you're punching holes for rivets or stitching, make sure you aren't placing them too close to the edge. Leather is strong, but if you compromise the grain by putting a hole too close to the margin, it will eventually tear through.
Final Thoughts on Selection
At the end of the day, picking leather for purse straps comes down to the specific "vibe" of the bag. If it's a sleek, modern evening bag, you'll probably want a thin, lined, and stitched strap. If it's a rugged, everyday messenger bag, a thick, single-layer strip of bridle leather is almost impossible to beat.
Just remember: stiffness is your friend when it comes to straps. You can always soften a strap with a bit of conditioner later, but you can never "un-stretch" a piece of leather that was too soft to begin with. Take your time feeling the hides, give them a little tug to see how much they give, and always go a little thicker than you think you need. Your shoulders will thank you later.