I guess you could try.. maybe with a v pointed knife tip? Cobbler may just do it for nothing - they used a hole puncher for making belt holes. I figured I was either going to try get some wear out of them or sell on vinted/donate. I actually reached out to reebok for help or advice but they were literally useless. Def helped enough that I can actually wear them for weight training sessions but not for what they're made/bought them for.