Vintage Mountain Hardwear Transition Softshell Windproof 1/2 Zip.

N2S Windstopper - Can be worn as a base next to skin or mid layer.

Size L slim fit, short/Medium length, long sleeves: 

Pit to pit: 23" 
Pit to cuff: 23"
Length down back: 28"

Very good, clean and working condition. Slight lift on logo edges.