For sale:

Patagonia made a Helium windshirt? yes they did :) 100% polyester and 6.2oz, men's large measuring 26" across the armpits, 29" back length and 38" from the center of the collar to the sleeve. No pockets or hood, 1/2 zip pullover, elastic cuffs and an elastic drawstring at the hem. In excellent condition, freshly laundered in Sport Wash and ready to go. $30 including US shipping and PayPal fees.