I used this for my two sons. I have a large build (I usually wear a 4L size), but it was easy to put on and take off, which was great. The waist belt and straps are long, so it's fine even for a large body. I tried various carriers at Akachan Honpo, but this one had a more relaxed fit around the waist. So, I could tighten it even after putting the carrier on. Many other carriers require you to put on the waist belt first and then put on the shoulder straps, but this one lets you put on the shoulder straps first and then the waist belt, which is easier. Putting on the waist belt first was difficult for me. I highly recommend this baby carrier. I used it for two children and stored it at home, so there are some minor scratches on the buckles (difficult to see in the photos). I may have missed something, but I would be happy to pass it on to someone who understands. The color is anthracite. It's a softer color than black, giving a gentle impression. #BabyBjorn #BabyCarrier #ONE KAI AIR Popular model... One Kai Air