This is a RS Tiachi 4mm chest protector. It is universal and just sits in between your chest and suit with no attachment straps. It has some rubber texture to keep it in position. I bought it new last year, but never used it since my suit already had one. It has basically lived in my gear bag for a year. I'm tired of looking at it, and it needs to find a new home where it will actually see some use. I think new is around $50-$60 but I'll take a fair offer. I can also deliver to NJMP for the N2/WERA race this weekend, but it will cost you a beer for delivery. Untitled by ineedanap, on Flickr