FXR Helium X Pant

Built for high-performance trail riding in demanding winter conditions, the FXR Men’s Helium X Pants combine premium weather protection, flexible mobility, and lightweight insulation. The M-Series Omni-Stretch™ 450D polyester outer shell uses a HydrX 35K™ waterproof, 25K breathable, and windproof laminate with critical seam sealing and a PFAS-free DWR finish to help block snow, moisture, and cold air. Abrasion-resistant 660D nylon reinforces the insteps and hems, while 120g Thermal Flex™ Ultra Lite fill delivers a maximum warmth rating of 5 without excessive bulk. 

The ACMT™ dual-layer climate control and anti-condensation system works with a seam-sealed lining and integrated venting to help manage interior heat and moisture. Dry Vent™ thigh pocket vents provide snowproof, moisture-resistant airflow, while heavy-duty waterproof zippers protect key openings. Padded knees, thermal and dry seat and knee inserts, storm cuffs, and front and rear boot-lace retention add protection in high-contact areas. Adjustable removable suspenders, waist adjustment, windskirt attachment loops, back leg-length adjusters, and reflective details complete the trail-ready design. 

• HydrX 35K™ laminate provides 35K waterproofing 25K breathability and windproof protection 
• ACMT™ dual-layer climate control and anti-condensation system helps manage interior moisture 
• Seam-sealed ACMT™ lining system integrates ventilation for improved climate control 
• 120g Thermal Flex™ Ultra Lite fill provides lightweight cold-weather insulation 
• Maximum warmth rating of 5 balances warmth with active trail riding performance 
• M-Series Omni-Stretch™ 450D polyester outer shell supports flexible unrestricted movement 
• Abrasion-resistant 660D nylon reinforces the insteps and hems against wear 
• Critical seam sealing helps reduce moisture entry through exposed stitched areas 
• PFAS-free DWR finish helps shed moisture from the outer surface 
• Dry Vent™ thigh pocket vents resist snow and moisture while releasing excess heat 
• Padded knees provide targeted protection during riding and kneeling 
• Thermal seat dry seat and dry knee inserts provide added warmth and moisture protection in key contact areas 
• Heavy-duty waterproof hand pocket and inner-thigh vent zippers help protect key openings from moisture 
• Storm cuffs with hook and loop and snap closures plus front and rear boot-lace retention help reduce snow entry 
• Reflective inserts and screen prints improve visibility during low-light riding conditions 

Men - Tall Sizing (6’1” to 6”4”) 

· 2” longer in arm and body length from regular sizing 

· 3” longer inseam length from regular sizing

Men - Short Sizing (5’4” to 5’7”) 

· 1.5” shorter in arm and body length from regular sizing 

· 2.5” shorter inseam length from regular sizing