rash guard size guides

any body any idea on the 10p rash guard size guides?? :cool::cool: thanks

I'm 5'6'' and 213lbs and the 2XL fits a little tight but its very comfortable

I'm 5'6" and about 170ish. Debating whether I should go M or L. I would like it to fit, but not super skin tight. Would you know if the Large would be okay?