I love Onno shirts! I’ve been wearing the original bamboo for a couple of years and just recently tried the Onnocell. The Onnocell is very flattering and thinner than the original. I think I might actually like the fit better than the original, but they’re both extremely soft and comfortable and I like having two different styles. I am 5’10”, approximately 135 pounds and the small fits perfectly—fitted, but not too tight. Onno is a wonderful company: when I’ve had an issue with an order, they responded quickly and pleasantly and appeared to be solely interested in making the customer happy.