I usually order a small/ medium top however based on the comments ordered a large. The fit is still not perfect but the quality is great and colour is awesome.

I imagine this is probably a great jacket. It feels like high quality material BUT… my god it’s tiny. I normally wear a medium in nearly everything. I decided to size up to a large based on other reviews and the large still fit like a small. Forget even trying to put any layers underneath. I’m pretty sure I might have to try the XXL if I try to order another. For reference I’m a 36 bust and 29 waist with not so tiny arms. So if you’re close to that…Size up at least two sizes.

Sizing is so small, I ordered a large (5'4, 140lbs, 34dd) and it fits okay with a light long sleeve and thin jersey under. If I wanted to wear more layers I would have to size up to an XL. However, the quality is amazing and It kept me warm for a whole ride in temperatures under 35F!

I usually wear a small but should have ordered medium. It's tight

I love the materials and functional design of the Prime Wind Jacket, but the sizing is so awful. I tried three times to find the vest version that would fit and returned all three because they just didn't fit at any size. Thinking the jacket might be a better fit option I decided to place yet another order. I wear a medium comfortably in my Specialized jerseys, but for reference the large in the Prime Wind Jacket is laughably small with nothing on underneath. Back it goes along with a small fortune in shipping charges.