Do not call the Spyder Flight Suit GTX Ski Suit a onesie, because it will not do this justice. The 2L GORE-TEX stretch polyester plain weave fabric is designed to ensure an ease of movement on the mountain with the guarantee of it being waterproof in all conditions. The 60g of PrimaLoft Silver ECO insulation and the Sherpa lined collar will provide incredible insulation for the coldest of cold days and the size zippers and underarm vents will keep you from overheating. For additional comfort and flexibility, the top of the flight suit can come off using an internal suspender system, turning this ski suit into pants to wear around the lodge. The Spyder Flight Suit GTX Ski Suit features a USST crest patch to show your solidarity and patriotism for the good ol USA and skiing. Stretch Polyester Plain Weave 2L with GORE-TEX Laminate and PFCecFree DWR, 60g PrimaLoft Silver ECO Insulation, Removable Helmet Compatible Hood with Adjustable Opening, Under Arm Zippered Vents, Full Side Zip, Sherpa Collar Lining, YKK Vislon Zippers, Silver Chassis: Targeted Interior Stretch Panels, Spacer Mesh Padding at Shoulders, Fully Seam Taped, Internal Suspender Adjustment System, Interior Stretch Cuff with Thumb Hole, USST Crest Patch, Exterior Material: Stretch Polyester Plain Weave 2L with GORE-TEX Laminate and PFCecFree DWR, Insulation Weight: 60g PrimaLoft Silver ECO Insulation, Taped Seams: Fully Taped, Waterproof Rating: 28,000mm, Breathability Rating: 25,000g, Hood Type: Removable, Pit Zip Venting: Yes, Warranty: Lifetime, Type: One Piece, Length: Full Length, Insulation Type: Synthetic, Waterproof: Extreme Waterproofing (> 20,000mm), Breathability: Extreme Breathability (> 20,000g), Warmth Factor: Warmer, How Does This Fit?: True To Size, Model Year: 2020, Product ID: 584466, Model Number: 199006 250 M, GTIN: 0192636015272