NASH ZT Base Layer Underwear Set

Product highlights

Designed for anglers who spend long hours beside the water, the Nash ZT Base Layer Set is a technical underwear kit intended as a first thermal layer. Comprising a long-sleeve top and matching bottoms, it is worn directly against the skin to help retain body heat when temperatures drop, while remaining discreet and comfortable under your other fishing clothing.

Its slim fit profile follows the body without compressing, reduces excess fabric and allows outer layers to perform effectively. This thermal underwear for fishing is comfortable enough to wear all day, whether casting, moving around your swim or sheltering in your bivvy.

Versatile, the top can also be worn alone when the weather is milder. The long sleeves provide added sun protection, reducing the risk of sunburn on the arms, while also acting as an effective physical barrier against mosquitoes and other insects. Thanks to its soft fabric, the top and bottoms move naturally with you, without excessive chafing or discomfort.

Technical features

• Complete set including a long-sleeve top and matching bottoms for uniform protection of the upper and lower body.
• Base layer design intended to be worn next to the skin to promote heat retention in cool to cold conditions.
• Slim fit cut to minimize bulk under outer layers and optimize freedom of movement.
• Soft-to-the-touch fabric for lasting comfort, even when sitting for long periods, crouching or making repeated movements.
• Long sleeves provide extra physical protection against the sun and act as a barrier against mosquitoes in summer conditions.
• Designed to be worn under outer layers (jackets, trousers or suits) without creating uncomfortable bulk.
• Suitable for long fishing sessions and, more broadly, for many outdoor activities in variable weather.

Benefits and strong points

The main advantage of the Nash ZT Base Layer Set lies in its ability to maintain a pleasant feeling of warmth when temperatures drop around the water. Acting as an insulating layer close to the body, it limits heat loss and helps you enjoy your fishing sessions, day or night, with greater overall comfort.

The softness of the fabric helps reduce irritation and rubbing, even when worn continuously for several hours. Whether you walk to a new swim, kneel to prepare rigs or remain still in your chair, the set follows your movements without hindering technical gestures or creating uncomfortable pressure points.

Another major benefit is how the top and bottoms behave under additional layers. The design prevents the fabric from bunching or accumulating in certain areas, notably under a jacket, suit or sleeping system. In practice, this means fewer compression zones, less discomfort at the hips, knees or elbows, and better rest quality during bivvy nights.

Versatility is also a strong point. When the weather is milder, the top can be used alone as a lightweight long-sleeve garment. It then provides appreciated sun protection and acts as a physical screen against mosquitoes on the arms and shoulders, making it a valuable ally on spots particularly exposed to insects.

Finally, having a coordinated top and bottom set simplifies organizing your fishing outfit. You immediately know which layer to put on first without mixing different underwear pieces. This practical aspect saves time when gearing up and helps you stay focused on what matters: your fishing.

Usage advice

To get the most from this fishing thermal underwear, it is recommended to wear the set directly on the skin as a first layer. Then add appropriate mid and outer layers according to current weather conditions, adjusting the number of layers based on cold, wind and your activity level.

In the coldest conditions, combine the Nash ZT Base Layer Set with warm trousers and an insulated jacket or suit to create an effective layering system. As temperatures rise during the day, you can progressively remove outer layers while keeping the long-sleeve top as a light, comfortable protective layer.

In milder weather, the top can be worn alone while setting up your swim, handling baits or making short movements. You benefit from arm coverage against the sun and mosquitoes while maintaining the freedom of movement needed for repeated casts and bank-side moves.

Choose a size that remains close to the body but comfortable, so as not to restrict blood circulation. After use, allow the set to dry completely before storing it with the rest of your gear and always follow the care instructions on the manufacturer's label.

Testimonials

FAQ

Question 1: Is this thermal underwear reserved for fishing or can it be used for other outdoor activities?

Answer: Although specially designed for anglers' needs, the Nash ZT Base Layer Set is also suitable for many outdoor activities in cool weather, such as bivvying, light hiking or camping, whenever you need a warm, soft and comfortable first layer under your main clothing.