The warmest performance underwear in the world. After two weeks of keeping you snug, it still won't hold odor or lose its shape. The ultimate base layer when layering or works brilliantly on its own.

Merino is much finer than traditional wool, and is technically more complex than synthetics. Icebreaker merino is the most hydrophilic of all fibers and can absorb and release 10x more moisture than synthetics. Each fiber can absorb up to one third of its own weight in moisture without feeling clammy or wet to touch. Your icebreaker can then release this moisture into the atmosphere to keep you feeling warm and dry.

* Raglan long sleeve crewe * Pushed forward side seams * Necline bound with double stitching

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