Icebreaker Men's Shifter LS Sweatshirt

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.

Merino wool corespun wraps Merino fibre around a super-fine nylon core to create lightweight, warm and durable garments for demanding activities. The enhanced strength and durability of the fabric retains the next-to-skin softness, breathability, temperature regulation and odour resistance of Merino wool.

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 (30° C) on gentle cycle with similar colours. Do not use softeners, do not use bleach. Line dry in the shade, do not tumble dry. Cool iron. Do not dry clean. Exact instructions on the care label.