The Nylon Cristal Overshirt in Yellow by C.P. Company. Features ultralight monofilament nylon, garment dyed. A special prismatic polyurethane film protects the outer face of the fabric, making it wind and water resistant. This functional finishing also serves an aesthetic purpose, as the prismatic film gives the fabric a super-shiny look, creating a three-dimensional chromatic effect.
Medium - 20" PTP
Large - 21" PTP
*PTP is the measurement from one arm pit to the other.
If unsure on the fit, compare measurements to another item you have that fits.