Base Layer Basic. Formerly known as the Light Rugged Crew Sock. The Rugged Light Cushion Crew is built on tiered construction - our fine gauge merino wool along the bottom, a more durable knit across the top. By adding performance features where your foot needs them, we enhanced the ‘custom-fit-feel’ of our patented knitting structures. The light duty truck of socks. Hike, Climb, March, Work, Move Engineered for Whole Foot Comfort Knit with a fine gauge merino wool for temperature regulation and ultimate softness. Wicks moisture, dries fast, and resists odors. Free Range Toe Box ensures room for your toes while contouring around them. Deep Heel Pocket wraps the foot, holds in place, and prevents blisters. Tapered Compression stimulates blood low and keeps the sock from falling down. Enhanced cushioning throughout entire sock.