skip to main content

Mens Midweight Merino Activewear Base Layer Zeus Top - Navy Blazer


By Paul James Knitwear


Product Details

High-Performance Wool Perforated Thermal Top. Taking its name from the ruler of the Olympian gods, Zeus is a long sleeve-fitted base layer top made from pure Italian spun merino sourced from Zenga Baruffa (Estd. 1850).
Breathable and lightweight (164g) this layer is both incredibly insulating and moisture-wicking, providing protection from wind chill and unlike synthetic alternatives, ideal for long durations of wear. With a fitted shape, round neck and functional perforations under the arms and across the centre back, this stylish top provides excellent performance for active lifestyles.
Benefits of merino sportswear

Thermoregulating, wicking and comfortable to wear straight to skin
Naturally odour-resistant and quick drying
Lightweight and insulating protecting you from windchill
Crease-resistant fabric which holds its colour and shape
Carbon-neutral, biodegradable and sustainable

Style summary

Thermal base layer top
164g midweight knitted top
Fitted | True to size
100% Italian spun extra fine merino wool sourced from Zenga Baruffa (Estd. 1850)
Skin-friendly, non-itch wool. Wear straight to skin
Made in our factory in India using the latest Japanese knit-ting technology

Wash care

Thanks to its antimicrobial properties which make it resistant to odour-producing bacteria, your merino activewear will not need to be washed as regularly. We recommend quick washes in the sink with cool water, and spot cleaning any stains. You can refresh your garment between washes by gently steaming it.

Hand wash* with gentle detergent, wool, or baby shampoo
Lay flat to dry on a towel
Apply a gentle iron with a slow steam
Do not tumble dry

*Why we use hand wash only merino wool

Machine-washable merino wool is treated with a heat-resistant plastic, which cracks as it is washed and tumble dried. Aggressive washing damages merino, causing the wool to pill more, lose its shape and appear worn quicker than caring for hand wash only fibres. Overall, choosing hand wash only merino wool means items last longer and they’re more environmentally friendly.

Made in: India

Fit Notes
Black & Navy Blazer - Chan is 6ft 0.5" (184cm), Chest 40" (102cm) and wears medium
True to size | Length medium 73cm +/- 1cm with each size
  • Delivery

FREE DELIVERY on all orders over £150

Items are shipped to you directly by our brands, using tracked, contactless delivery.

All customs fees, duties and taxes are included - see Delivery page for full details, conditions apply.

  • Returns

Free returns within 14 days of delivery - see Returns page for full details.

For orders placed between 1st November - 20th December you can enjoy extended returns for account credit up until the 10th January!

  • Price Match Guarantee

If you find an item cheaper elsewhere we will match the price, see FAQs or Contact Us for full details, conditions apply. Please note we're unable to offer a price match for products sold through independent retailers, or being shipped internationally.


We check all our designers against our criteria - so you can shop sustainably with ease. Find out more.

Paul James Knitwear's sustainable and ethical guarantees:

Meet the designer

Paul James Knitwear

Based in United Kingdom

We are Paul James - a luxury, Leicestershire-based knitwear manufacturer. We strive

Discover More

Our Recommendations