Blaklader Undershirt Half-Zip XWARM Merino 4699-1736

Blaklader Half-Zip XWARM Merino Undershirt

When temperatures drop well below freezing, you need an undershirt that genuinely performs. This thermal undershirt delivers serious insulation without the bulk, making it perfect for demanding cold-weather work. The Blaklader Half-Zip XWARM Merino undershirt uses 100% merino wool interlock fabric at 260 g/m² to trap warmth effectively whilst managing moisture. Its two-tone construction with contrasting seam detailing gives it a sharp finish, whilst the extended back panel ensures complete coverage during active movement. Designed for temperatures between minus 20°C and minus 35°C, this merino wool thermal shirt keeps you protected during the harshest conditions. The half-zip collar offers easy ventilation adjustment when needed, and the ribbed cuff detailing at the wrist provides a secure fit.

Key Features

• 100% merino wool interlock construction, 260 g/m²
• Extended back panel for complete coverage during work
• High collar with half-zip for temperature control
• Moisture transport technology keeps you dry
• Contrast seaming detail throughout

Recommendations from our Unishore Expert

For extreme cold environments, this thermal undershirt performs brilliantly as your base layer. The merino wool composition actively regulates body temperature and wicks moisture away from your skin, meaning you stay warm and dry even during intense physical activity. The extended back panel is genuinely helpful when you're moving around in outdoor work, as it prevents gaps when bending or reaching. Pair this with an insulating mid-layer and windproof outer shell for proper cold-weather protection. The half-zip design gives you flexibility to adjust ventilation without removing the entire layer when you need a quick temperature adjustment.

Product Features

• Material - 100% merino wool, interlock, 260 g/m²
• Closure - Half-zip with stand collar
• Sleeve Length - Full length with ribbed cuff detail
• Seam Detail - Contrast stitching throughout
• Item Number - 4699173

OEKO-TEX STANDARD 100 CERTIFIED

OEKO-TEX® Standard 100 is a globally recognised health certification that confirms that every component of our clothing, from the fabric to the buttons and zips, has been tested and is free from harmful substances. This certification guarantees that our clothing is safe for your skin and health.