Extra strong nylon casing

22% Merino wool

Battery: LIR123A (not infinite light)

You’re probably wondering why this bag doesn’t have wheels

Sugoi Firewall Adult Bootie 2018 head Extra strong nylon casingFor cold weather rides that head toward freezing temps, these thermal booties will provide robust warmth with easy step in design. FEATURES Firewall 220 fabric is a mid weight stretch thermal knit soft shell for powerful wind protection Abrasion resistant heel, toe, and under shoe panel for increased durability Offset rear zip to reduce Achilles tendon irritation Wrap around seams for a comfortable fit Reflective heel pull tab and silicone gripper