I have a canvas messenger bag that I use to carry my paperwork. I like it because it’s versatile, and can look formal or casual depending on the outfit. The problem is, it slips when I cycle with it, and I end up banging it with my knee as I pedal. I decided to fashion a strap that I could clip on so that the bag doesn’t slip sideways.
Step 1: Source the Braces (suspenders)
Buy heavy duty braces (suspenders in the US). They shouldn’t cost more than £4 on ebay. I got a pair in red and black for £3.29 each. The wider the elastic, the better.
Step 2: Take Apart Suspenders
Take apart the suspender ‘biting clip’ (not sure if that’s what it’s called) to release the strap
Step 3: Cut Down the Strap
I chose a length by eye that I thought would be short enough to restrain the bag.
Step 4: Burn the End to Prevent Fraying
Step 5: Put the Strap Back Together
Crimp the ‘biting clip’ to the strap. You can then put the strap back together as it was originally, only shorter.
Step 6: Strap to Bag and Chest Strap!
You can just put the strap itself into the bag when you’re not using it.
I was a bit worried at first that the clips would be torn off due to the forces put on the strap while cycling with the bag full. I found that because the strap is able to stretch, there aren't really any sharp tugs on the clips, and I haven't had a single incident! Also note that my bag is canvas, which is ideal for this type of clip, as they are designed to bite into cloth.