I usually wear an XL, but here I purchased a 2XL. IMHO 2XL fits like a normal XL would. Steal of a deal!!This jersey makes a comfy cool ride on hot summer days cyclingReally like the cycling vest, but it definitely runs small. Ordered the next size up and it was just fine.Like the jersey. But you MUST order one size bigger. Absolutely no way is their XL an XL in any worldEven though I bought UP in a size, it still is a little snug.Never buy 'this' product: you will wait for a long time and in the end will get something else, not what you paid for.Fit was right, excited to wear it butnthenzipper is so cheap that it broke when I tried it on. It's definitely not YKK quality zipper.Looks great, ordered per sizing chart. Still too small.