The 45NRTH Toaster Fork balaclava uses a flat-seam construction so it sits smooth under a helmet instead of bunching at the pressure points a standard seam creates. Its merino wool blend regulates moisture and temperature, holding comfort down to 0°F while the long drape adds coverage across the neck. What Our Gearhead® Experts Are Saying:"I've worn this through single-digit rides and never had to adjust my helmet mid-ride to fix a bunched seam. It sits flat the whole way through."