We call this the ¼ zip because there’s a zipper at the top that goes ¼ of the way down (which is good when you need an instant cool down). Please don’t confuse this with the other kind of ¼ zip, the one that leads to late night pizza delivery and patchwork pants. For barrier-breaking base layer performance, the quick-drying Burton Expedition ¼ Zip features heavyweight warmth, built-in stretch for unlimited mobility, and a Stink-Proof antimicrobial finish that keeps you on point from first run Friday to après on Sunday.Key Features of The Burton Expedition 1/4 Zip 1st Layer Top: Stretch Microfleece Dryride Expedition Weight DRYRIDE Ultrawick Stretch Microfleece Quick-Drying and Highly Breathable Stretch 360° for Unlimited Mobility Stink-Proof Antimicrobial Finish Chafe-Free Softlock Seams for comfort ¼ Zip Venting with Super Soft Zipper Guard at Chin |