so i'm a 36C-38D at times. 5'7 175 wt. but loosing belly fat and hips and waist fast while biking. i'm now 164 lbs so it fits when i'm at both weights. love the fit, smooth, nice neckline to cover up skin while i ride, i do wear a lightweight zip up over it during the 39 -50 degree mornings while i ride. my arms are not fat or thin. like sleeves come to my wrist, i wear gloves to cover the rest. color is awesome, fabric great. washed and hung dry over nite. i plan to buy more!!!