Sizes are on the small size but I called and the customer service was great the sent me out a different size right away.
I recently bought a new Yamaha motorcycle so I had to get some Yamaha swag to wear too. I got this shirt in a small and it is rather big on me - I wish that there had been an option for XS. I think after washing it a few times it might shrink up. Other than that, it is very soft and comfortable and I like the Yamaha design. It even came with a Yamaha sticker which was cool. :)
There have been no questions asked about the Factory Effex Women's Yamaha T-Shirt.