Natural Warmth Without the Bulk

The Portwest B183 Merino Wool Crew Neck Shirt delivers proper cold protection without turning you into the Michelin Man. This long-sleeved base layer combines 50% Merino wool with 50% polyester in a 140g fabric that regulates your temperature naturally – keeping you warm when it's freezing and cool when you're working hard. Whether you're outdoors in winter or layering up for warehouse shifts, this shirt handles the job across all seasons.

Key Features:

• 50/50 Merino Wool and Polyester Blend: Natural insulation from Merino wool meets synthetic durability from polyester. You get the best of both worlds – temperature regulation that adapts to conditions plus a fabric that won't quit after a few washes.
  
• Natural Moisture Wicking: Merino wool pulls sweat away from your skin and lets it evaporate quickly. No clammy feeling during active work. You stay dry and comfortable even when pushing hard.
  
• Antimicrobial and Odour Inhibiting: Natural properties in the Merino wool fight bacteria and keep things fresh during extended wear. Perfect for long shifts or multi-day site work where laundry isn't always an option.
  
• Flat-Locked Seams: Seams sit flat against your skin without chafing or rubbing. Matters more than you'd think when you're wearing this as a base layer for 10 hours straight.
  
• Generous Fit for Easy Layering: Cut with room to move and layer without restriction. Slides on easily under work shirts or fleeces without bunching up or feeling tight across the shoulders.
  
• Ethical Mulesing-Free Wool: Portwest sources wool without mulesing practices, so you're getting quality materials produced to proper ethical standards.
  
• Lightweight Yet Durable Construction: At 140g, this shirt packs serious warmth without weight. High-tech construction tested for daily wear means it handles repeated washing and tough use without falling apart.
  

Portwest built this base layer for professionals who need reliable performance in demanding conditions. The B183 works equally well for site work, warehousing, outdoor trades, or even leisure activities when the temperature drops. Order yours now and feel the difference natural fibres make.