From approach to summit & back again, the Piton Hybrid Hoody lets you move uninterrupted, shedding spindrift & wind, spanning the space between midlayer & shell. A truly technical fleece for alpine climbing, its trim design features a durable Polartec Wind Pro fabric (90% polyester thats 50% recycled/10% spandex) in key areas (top of hood, elbows & front panels, over the shoulders, down to mid-back) with Hardface Technology that enhances the Deluge DWR (durable water repellent) finish for increased water repellency & abrasion-resistance. The remaining areas use super breathable, stretchy & wicking Polartec Power Dry fabric (94% polyester thats 54% recycled/6% spandex), creating a flexible body-mapped design that lets you wear the jacket as a moderate-conditions outer layer until its time to don a full-on shell. Designed with a stretchy, snug-fitting balaclava-style hood, zippered chest pocket & shoulders without seams for comfort under a pack. Features Polartec Wind Pro with Hardface Technology & a Deluge DWR (durable water repellent) finish protects your front torso & elbows from wind, moisture & abrasion Polartec Power Dry fabric provides superior stretch, warmth & moisture management in the main body; durable, smooth jersey face slides easily beneath layers Warm, brushed-fleece interior moves moisture quickly to the fabric face Snug-fitting balaclava-style hood stretches & moves with you Microfleece at back of neck, chin guard, cuffs & hem One zippered chest pocket Shoulder seams eliminated for pack-wearing comfort Front body panels: 7.9-oz Polartec Wind Pro 90% polyester (50% recycled)/10% spandex with Hardface Technology & a Deluge DWR (durable water repellent) finish. Back & side panels: 5.9-oz Polartec Power Dry 94% polyester (54% recycled)/6% spandex 317g Glossary Recycled Polyester We recycle used soda bottles, unusable second quality fabrics & worn out garments into polyester fibers to produce many of our clothes. Deluge DWRPatagonias proprietary durable water repellent fabric finish, Deluge DWR, lasts substantially longer than standard DWRs. Garments with the Deluge DWR finish have like-new repellency after years of extensive use.