Icebreaker Women's 150 MerinoFine Ace SS Tee

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The 150 MerinoFine™ Ace SS Tee is a go-to lightweight performance tee made with 100% superfine Merino wool with OTW® yarn spinning technology that adds durability and abrasion resistance and reduces pilling. The shoulder and side seams are placed to avoid friction and the hidden underarm gussets add mobility and comfort during intense movement. Naturally breathable, moisture wicking and odour resistant.


  • Active fit
  • Ultrafine 17.5-micron Merino wool fibres feel exceptionally soft and warm next to skin
  • Crafted for high-intensity movement using OTW® Omega Twist Spinning Technology
  • Offset shoulder seams to help reduce friction
  • Hidden seamless underarm gusset for increased mobility and comfort
  • Forward side seams for enhanced fit
  • Side splits at hem for added ventilation and mobility
  • Flatlock seams to help reduce friction


Made From 100% Merino wool 17.5-micron exclusive of decoration

Merino wool is super lightweight, soft, moisture-wicking, non-itchy, non-clammy, warm in the cold and cool in the heat, and has a miraculous ability to resist odour. Because it was made in the mountains rather than in a petrochemical laboratory. It's naturally renewable, recyclable and biodegradable.

OTW® Omega Twist Spinning Technology creates superior garment construction that improves the longevity of the garment and meets the demands of activewear: reduced pilling, more abrasion resistance, more production yield during the manufacturing process and reduced mending and finishing costs generally needed to construct the best worsted Merino wool fabrics. The overall functional enhancement of Merino wool garments made from OTW® yarns elongates their life cycle and, thereby, improves the environmental impact of every product containing them.

The smaller the micron, the finer the fibre, the softer it feels. The diameter of a Merino fibre is measured in microns – where one micron equals one millionth of a metre. Icebreaker's Merino fibres range from 15.5 to 23.5 microns to ensure a soft hand feel across our skin to outer layers. Finer fibres feel softer because they bend more easily when in contact with the skin.

  • Icebreaker next-to-skin layers: 15.5-18.5 micron
  • Icebreaker mid layers: 18.6-22.5 micron
  • Icebreaker outer layers: 22.6-23 micron
  • Synthetic fibres: 30 micron
  • Traditional wool fibre: 50 micron
  • Human hair: 70 micron

Machine wash cold gentle cycle. Wash with like colours. Do not use softeners. Close all fasteners before washing. Do not bleach. Do not tumble dry. Dry flat in shade. Cool iron. Do not dry clean.


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