Ergodyne 40234 Lightweight Base Layer Shirt Large Black

Product Description

The ERGODYNE 40234, sold under the N-Ferno 6436 line, is a long sleeve lightweight base layer shirt built for workers who need reliable warmth without bulk or restriction in mild to cold conditions. Constructed from 180g polyester-spandex performance fabric, the shirt delivers stretch, breathability, and thermal retention in a single layer. Raglan sleeve construction widens the underarm area for a full range of motion, while a long tail provides complete coverage during bending and reaching. Moisture-wicking technology and an anti-odor treatment keep the wearer dry and fresh across a full shift. Flatlock seams and a tagless interior eliminate irritation and chafing during extended wear.

This shirt is designed for trade and industrial workers operating in cold or variable-temperature environments, including construction sites, transportation and logistics, warehousing, and refrigerated storage areas. The slightly looser fit compared to compression-style base layers creates an air gap that adds insulation while also improving airflow during high-output tasks. It layers smoothly under sweatshirts, jackets, and bib overalls without bunching. The N-Ferno 6436 can be paired with the N-Ferno 6481 Lightweight Base Layer Pants for a full base layer set.

Key Features

• 180g polyester-spandex fabric provides warmth without bulk in mild to cold conditions
• Slightly relaxed fit creates an insulating air gap while maintaining breathability
• Raglan sleeves with wider underarm cut allow full range of motion
• Smooth exterior and long tail layer easily under jackets, bibs, and sweatshirts
• Moisture-wicking technology and anti-odor treatment for all-day freshness
• Flatlock seams and tagless interior prevent chafing and skin irritation

Compatibility

Designed to pair with the N-Ferno 6481 Lightweight Base Layer Pants. For heavier cold-weather demands, the N-Ferno 6435 Midweight Base Layer Shirt and 6480 Midweight Base Layer Pants are available separately.

Installation Notes

No tools or trade licensing are required for this garment. Follow manufacturer care instructions to preserve moisture-wicking and anti-odor treatments. Inspect seams and fabric integrity periodically when used as part of a layered PPE or cold-weather work system.