I purchased the Trezona Trail Top Tube Bag in the smaller size as a gift for my girlfriend. Unfortunately, it was just too big for her bikes (48cm Soma Smoothie, and 49cm Lemond)
I liked it but it was too small for my bike ( 56cm Motobecane). I will have to arrange to return it. I did like it enough to order the large for myself and have received it and am happy with it. It does seem to be made of a darker greenish canvas than my other Frost River bike bags ( roll top panniers, trunk bag, and saddle bag)
As a side note, the saddle bag I also ordered for my girlfriend is made differently than mine. Still very nice, but I prefer the original with its piping sewn into the seams. Overall, a company I’m happy to keep purchasing from