Men's Summit AmFIB® Alpha Pants
Men's Summit AmFIB® Alpha Pants
Men's Summit AmFIB® Alpha Pants
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For riders who refuse to hang up the bike when winter hits, the Summit AmFIB® Alpha Pant is built to go deep into the coldest months with purpose-driven performance.
Our warmest mountain bike pant uses strategically mapped Polartec® Alpha® Direct insulation across the seat and thighs to deliver breathable warmth where it matters most—keeping you dry and thermally balanced during high-intensity efforts. AmFIB® softshell fabric wraps the legs in windproof, water-resistant protection, while a PFAS-free PI Dry® finish ensures eco-conscious moisture management in variable conditions.
Zippered Trail Access pockets secure essentials without disrupting your pedal stroke, and tapered cuffs with zip openings offer versatile fit over a range of footwear. Designed to layer comfortably over your go-to liner shorts or thermal cycling bibs, this pant unlocks cold-season trail potential with every turn of the cranks.
Part of our Ride 365 philosophy, it’s made for those who see winter not as a break—but as a challenge to keep going.
Specs & Features
- 60g Polartec® Alpha® Direct insulation in seat and thights continuously releases excess body heat before it builds to cause saturation and discomfort
- No chamois pad
- 360-degree AmFIB® softshell protection from wind and cold
- PI Dry® C0 technology for an PFAS-free durable water repellent
- Zippered Trail Access pockets for secure storage and pedaling comfort
- Kneepad compatible
- Made with recycled content
- 32.5" inseam
Materials & Care
Main Body: 89% recycled nylon, 11% spandex | Liner: 78% recycled polyester, 22% polyester | Pocket Bag: 95% recycled polyester, 5% polyester
Wash with simple detergents without additives (Clear or Free). Wash gentle cycle. Close all zippers and hook and loop closures (“Velcro”). Tumble dry low (fabric should not be hot to the touch). When in doubt (or to save energy) hang dry. Do not use dryer sheets. Products with scents, softeners, etc. will inhibit performance of technical fabrics.
