evo.com | Arc'teryx One Piece Suits > First, people explored the great snowy mountains in whatever they had in their closet. Then came snow pants. Soon, adventurers graduated to bibs for the deep and blustery days. Welcome to the future where onesies reign supreme, led by her majesty the Arc'teryx Incendia Onepiece. Constructed with the legendary waterproof-breathable GORE-TEX membrane and durable, premium materials, this onesie is built for blizzards, traverses, and mean-looking descents. Slip into this epic suit and don't look back. GORE-TEX Guaranteed to Keep You Dry. The GORE-TEX membrane is an extremely thin layer of expanded polytetrafluoroethylene (ePTFE). It has over 9 billion pores per square inch, large enough to let water vapor exit but small enough to prevent liquid water from entering. One Piece Design provides ultimate weather protection, packability and style. Helmet Compatible StormHood(TM) Keprotec(TM) Insteps Guard against abrasion from edges. One Internal Zippered Pocket | Women's Arc'teryx Incendia Onepiece 2022 - Large Black | Polyester