Just heard of these today from the homey Errol when he came over for the Laker game. It’s made by Fabric Horse and it’s a holster for your U-Lock. I’m sure these are huge in the fixed community which I am not too knowledgeable about. But I will cop one of these for the ol’ BMX. From their site…
“Strategically place it to skip certain loops on your pants and stop blowing out your back pocket. Lock Holsters come standard in grey and are made from seat belts pulled from junk yards.”
