CLOSEOUTS . super.naturaland#39;s Base top 175 is an outstanding performance base layer for skiing, hiking and other cold weather aerobic activities. Itand#39;s made of an itch-free, stretchy merino wool blend with raglan sleeves. Available Colors: OCEAN DEEP, SHADOW BLUE, FERRARI RED, CAVIAR. Sizes: S, M, L, XL, 2XL.