Icebreaker Men's Merino 200 RealFleece Descender LS Half Zip

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The Merino 200 RealFleece Descender LS Half Zip is a lightweight, versatile Merino midlayer top designed for high-intensity adventures. Made with breathable, odour-resistant brushed RealFleece® fabric that blends TENCEL™ with Merino wool for warmth and next-to-skin softness. Other features include Cool-Lite™ eyelet mesh under the arms for active ventilation, a hidden chest pocket for small items, offset shoulder seams for pack-wearing comfort and thumb loops to anchor the sleeves for easy layering and extra warmth.


  • Slim fit
  • RealFleece®: brushed icebreaker merino wool provides warmth and next-to-skin softness
  • Lightweight and breathable Cool-Lite™ fabric is cool to the touch and quick drying
  • Off-set shoulder seams prevent friction/pack rub
  • Half zip adds venting options
  • Underarm panel in eyelet mesh for ventilation
  • Hidden chest pocket
  • Offset side seams for comfort
  • Thumb loops anchor sleeves for easy layering and extra warmth and protection
  • Dipped hem for added coverage
  • Flatlocked seams prevent friction


Made From 60% TENCEL™ lyocell, 40% Merino wool 18.9 micron, exclusive of decoration and elastic

Merino wool is super lightweight, soft, 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.

RealFLEECE® is Icebreaker's natural, luxurious, brushed Merino wool alternative to a synthetic fleece. Made with corespun yarn, the superfine Merino wool is reinforced with a fine nylon core for strength and durability and the brushing traps heat to provide you with supreme softness and warmth while keeping weight down.

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 warm. Wash with like colours. Do not use softeners. Fasten all closures to wash and dry. Do not bleach. Do not tumble dry. Line dry in shade. Warm iron. Do not dry clean. Exact instructions on the care label.


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