Birtley Men's Merino Wool Long Sleeve Base Layer

A comfortable starting point for days outside. The Birtley long-sleeve base layer uses fine merino wool jersey in a close-fitting crew-neck design that sits neatly beneath your fleece or jacket, from early walks to cooler days on the bank.

Key Features

• 100% merino wool with fine 17.5-micron fibres.
• 150gsm lightweight jersey
• Long sleeves and a simple crew neck for everyday layering.
• Flat seams and shaped underarm panels for comfortable movement.
• Straight hip-length hem tucks neatly into your layering system.

Fit & Comfort

Men's close fit, with natural knitted stretch. Sizes S–2XL. Use the product's inch-based garment measurement chart and compare with a similar base layer you own; this is not a body measurement chart. Size up if you prefer a less fitted feel. Allow for small differences from hand measurement.

Best For

Walking, hiking, camping and layering beneath outdoor clothing in cooler conditions. Add insulating and weather-protective layers to suit the day.

Material & Care

100% merino wool, 17.5 micron; 150gsm jersey as selected. Wash inside out on a gentle wool cycle at 30°C or below with wool detergent. Wash similar colours together, reshape and dry flat away from direct heat. Do not bleach, use fabric softener or tumble dry. Follow the garment care label.

What's Included

One long-sleeve base layer top. Trousers and other clothing shown are not included.