M's Pennant RFL Over-the-Calf Ultra-Lightweight Ski & Snowboard Sock jacket The R/Fit Pro 100 is

The R/Fit Pro 100 is for advanced level skiers who seek game improvement performance and control to ski anywhere on the mountain

The heel unit

The XCELERATOR 2

while a brushed

M's Pennant RFL Over-the-Calf Ultra-Lightweight Ski & Snowboard Sock jacket The R/Fit Pro 100 isMinimalist checklist: fit, comfort, style. The Pennant sock checks all the boxes with its next to skin, no slip boot connection, fatigue easing arch support, Merino Wool performance, and a dash of drop needle design. It's the best sock for skiing and riding because it's also Guaranteed for Life. Height: OTCWeight: Ultra LightweightPair with: Ski boots, snowboard boots, winter boots