Factor 2 Mens Mid Layer Onesie

Sub Zero Factor 2 Unisex Mid Layer Onesie is a next-generation thermal garment that blends full-body comfort with advanced insulation. Designed as a one-piece mid layer, it features tailored stretch panels for optimum warmth, breathability, and freedom of movement. With a snug but flexible collar, long sleeves, full-length front zip for easy on/off, and articulated knees, it fits close to the body under shells without adding bulk. Whether used for alpine skiing, snowboarding, expedition layering, or lounging at altitude, this onesie offers performance and ease in one seamless piece. Features: • Soft virgin polyester Factor 2 fabric: engineered to trap warmth while remaining breathable and smooth against the skin • Full-length YKK zip: robust, easy-to-operate front opening for quick on/off and ventilation control • Elasticated stirrups: secure leg anchoring to prevent ride-up and maintain full coverage • Set-in sleeves: classic, articulated sleeve construction for better range of movement and layer compatibility • Double-thickness collar: enhanced insulation around the neck and protection against drafts • Flat seam stitching: low-bulk, low-friction seams to reduce chafe and improve comfort under layers • Double-thickness cuffs: extra reinforcement at the wrist to block cold air and resist wear • Lots of stretch both vertically and horizontally: four-way elasticity for full freedom of motion in any direction • Easy to wash: machine washable, no special care required • Quick to dry: low moisture retention enables rapid drying between uses