Icebreaker Baselayers

A baselayer's job is to move moisture off the skin and hold a stable temperature — merino does both without the odour build-up of synthetics. Icebreaker's baselayers are graded by weight: Oasis 200 is the year-round midweight, 260 Tech and ZoneKnit add warmth and body-mapped ventilation for cold or stop-start activity, and the lighter 150 Tech Lite works as a baselayer in milder conditions. Bottoms run from Oasis 200 leggings to 260 Tech thermals.

Not sure which weight? The merino weights guide matches fabric to conditions. For every brand of base layer we stock, see the full base layer collection; to stay within the brand, browse the complete Icebreaker range or pair a baselayer with an Icebreaker tech tee.