Hello, first post here Recently I was searching for a dive computer and decided on the cressi leonardo. Amazon seemed to be the cheapest at 249 CAD and free shipping but they only had the pink one at that price, the other colors were $300+. I decided to get it and try to dye the strap black and it worked pretty well so thought I would share how I did it. All I used was a bottle of Rit liquid black clothing dye that cost 5 bucks. I put some water and a table spoon of salt into a small pot then heated it until it was steaming but not boiling, then added half the bottle of dye and the strap. After about an hour it was a darker pink but nowhere near what I wanted so I added the rest of the dye and let it cook for maybe another half hour which made it purple. By that time I needed to go to bed so I shut the stove off and let the strap soak overnight, even without heat it seemed to get a lot darker but still not black. The next day I heated it back up and after an hour or so it was jet black, even after rinsing off the excess dye. I read somewhere that vinegar will cure the dye so I rinsed the strap off in water then soaked it in some vinegar and water for a bit. It seemed to already be cured because no dye seeped off into the solution. I'm very happy how it turned out and the dye seems to be very permanent! Now I have a one of a kind Leonardo strap