Icebreaker x Goldwin Merino Wool Top Size L Retail Price: ¥36,300 (tax included) This LS crew uses 15.5-micron high-grade merino fiber, the finest and softest in Icebreaker's history. Just touching the material makes the difference immediately apparent. It's as smooth as silk, with a texture you'll want to keep touching. This top is designed with a relaxed silhouette for comfortable wear.