1. Lead with 2-in-1 modular design (primary differentiator) 3. Removable liner with verified insulation weight 4. Shell material and A.C.M.T. system (combined - avoid duplication) 5. Ventilation and fit adjustments (combined functional system) DRY VENT SYSTEM – Moisture-resistant chest and side vents release excess heat while blocking snow entry, with adjustable windskirt that connects to pants The FXR Men's Helium X 2-in-1 Jacket delivers modular protection for snowmobile riders facing variable conditions. The waterproof shell pairs with a removable insulated liner, allowing you to adapt your setup as temperatures shift throughout the ride. The HydrX 35K membrane provides 35,000mm waterproof protection and 25,000g breathability, while the M-Series Omni-Stretch 450D polyester shell resists tears and abrasion. The A.C.M.T. dual-layer system manages interior climate and prevents condensation buildup during high-output riding. YKK Vislon Heavy-duty Aquaguard front zipper and waterproof zippers at chest, hand pockets, and radial side vents seal out moisture at critical entry points. Seam-sealed construction in critical areas reinforces weather protection. The Dry Vent System features snowproof, moisture-resistant chest pocket and side body vents that release excess heat while blocking snow entry. The removable Thermal Dry Active Liner adds 200g of Thermal Flex insulation when temperatures drop. The adjustable windskirt connects to pants to prevent snow infiltration, while shock-cord adjustable collar and hem fine-tune the fit. Hook and loop adjustable cuffs with lycra inner extensions seal out cold. Removable hood adapts to changing conditions. Reflective inserts improve visibility in low light. Includes goggle wipe chamois and key clip. Key Features: HydrX 35K membrane – 35,000mm waterproof / 25,000g breathable / windproof laminate Removable Thermal Dry Active Liner – 200g Thermal Flex insulation M-Series Omni-Stretch 450D polyester outer shell A.C.M.T. dual-layer system – climate control and anti-condensation YKK Vislon Heavy-duty Aquaguard front zipper with full inner placket Dry Vent System – snowproof chest pocket and side body vents Seam-sealed A.C.M.T. lining system with integrated venting Adjustable windskirt with pant attachment system Removable/adjustable hood