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Merino 200 ZoneKnit Long-Sleeve Crew Baselayer Top - Women's
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Merino 200 ZoneKnit Long Sleeve Crew Thermal Top balances warmth and breathability
What Our Gearhead® Experts Are Saying:
“I like this for hard-effort days in the cold when a standard merino top feels too warm. The zoned ventilation actually works, and the crew neckline layers cleanly under midlayers. It stays comfortable even when intensity ramps up.”
High-output days in cold conditions demand baselayers like the Merino 200 ZoneKnit Long Sleeve Crew: merino wool, body-mapped designed that adapt as your effort changes. From steady aerobic work to short bursts of intensity, this top helps regulate heat without constant layering adjustments. The midweight 100% merino construction uses ZoneKnit technology to map eyelet mesh into high-heat zones for improved airflow. Flatlock seams help reduce friction, while a gusseted design supports unrestricted movement.
Details
- Midweight merino base layer built for cold, high-intensity activity
- ZoneKnit mapping improves airflow and thermal regulation
- 100% merino wool manages moisture and resists odor naturally
- Flatlock seams and gusseted construction reduce friction
- Slim fit with thumb loops for a secure fit under midlayers and shells
- Item #ICEZ755
- Material
- 100% merino wool
- Insulation Weight
- midweight (200gsm)
- Fit
- slim
- High Point Shoulder
- [medium] 28in
- Style
- crew
- Hood
- none
- Thumbholes
- yes
- Anti-Odor
- natural attribute of merino wool
- Claimed Weight
- 7.8oz
- Activity
- ski, snowboard, run & training, hiking

A More Natural Way Of Living
Born in New Zealand in 1995, icebreaker pioneers natural performance apparel. Our commitment to sustainability is reflected in our use of 89.7% merino wool, which is at the core of everything we do.