Icebreaker Merino Blend 300 RealFleece Descender Long Sleeve Zip

Heavyweight RealFleece zip top that brings serious warmth and breathability to cold-weather missions.

The Icebreaker Merino Blend 300 RealFleece Descender Long Sleeve Zip is a performance mid layer designed for skiing, touring, and frosty trail days. Using Icebreaker’s 300-weight RealFleece blend of brushed merino wool and TENCEL Lyocell, it traps heat impressively without bulky puff, while still breathing and resisting odour when you’re working hard. Gusseted underarms, offset shoulder seams, and flatlock stitching keep it moving and rubbing-free under a pack, and thumb loops help lock sleeves under gloves when the wind really bites. Finished with two zip hand pockets and a dipped rear hem for extra coverage, it’s the kind of layer you’ll reach for from first frost right through deep winter.

• 300 RealFleece warmth – Brushed merino–TENCEL blend delivers high-level insulation with a soft, next-to-skin feel.
• Merino blend fabric – Main body uses around 60% TENCEL Lyocell and 40% merino wool for warmth, moisture management, and quick drying.
• Move-free design – Gusseted underarms and slim cut allow natural movement whether you’re skinning, hiking, or riding lifts.
• Cold-ready details – Thumb loops, dipped hem, and flatlock seams add coverage, comfort, and pack-friendly performance.
• Secure storage – Two zippered alpine hand pockets keep small essentials stashed and safe.
• Versatile mid layer – Ideal as a warm mid layer under a shell, or a standalone jacket for crisp, dry winter days.