Straight on product view of the TD Base Layer Long Underwear in Shadow Tiger Stripe showing the athletic cut, Merino bamboo thermoregulating fabric, and mission ready construction built for cold weather performance. Sold by Tactical Distributors in Virginia Beach for operators, outdoor athletes, and year round tactical layering needs.
Three quarter side view of the TD Base Layer Long Underwear in Shadow Tiger Stripe highlighting the ergonomic leg paneling, crotch gusset, and breathable Merino bamboo blend designed for movement in cold climates. Ideal for tactical operations, range days, and outdoor training across the United States through Tactical Distributors.

TD Base Layer Long Underwear

By TD Apparel
$ 49.99
Color: Shadow Tiger
Size
SKU: TD-BB1-STG-SM

TD Base Layer Long Underwear | Tactical Merino-Bamboo Performance Layer

Not your basic Merino- this is performance.

The TD Base Layer Long Underwear is built for cold-weather missions, early morning movement, and year-round comfort. Designed from a premium blend of Merino wool and bamboo, this next-to-skin layer regulates temperature, manages moisture, and resists odor through the most demanding days. Whether layered under your gear or worn solo for recovery, it’s engineered for all-season adaptability.

We all know the benefits of Merino, soft, breathable, and naturally antimicrobial. Bamboo takes it further. One of the fastest-growing, most sustainable fibers on the planet, bamboo is porous, thermoregulating, and eco-conscious. It keeps you warm when temps drop and cool when the heat hits, while its natural antibacterial properties help it stay fresh longer between washes. Together, they create the ultimate tactical base layer for both performance and comfort.

Why We Love It

Base Layer is your second skin. The TD Base Layer Long Underwear delivers all-season performance with natural stretch, breathable comfort, and thermal efficiency. It’s what you wear first and take off last- engineered for movement, made for mission versatility.

Key Features

  • Thermal performance through advanced fiber engineering

  • Moisture-wicking and quick-drying Merino-bamboo blend

  • Naturally odor-resistant and antimicrobial

  • Breathable and comfortable in varied conditions

  • Crotch gusset for unrestricted range of motion

  • Flip-top fly for quick access

  • Darted 2-ply front panel for ergonomic shaping

  • Stretch-finished fly and leg openings for easy on/off

  • Non-chafing plush elastic waistband

  • Subtle reflective logo hit on thigh

  • Sueded label logo at hip

  • No side seams and optimized wrap-around leg panels

  • Satiny soft-touch interior label

  • Low-bulk flat-locked seam construction with soft thread

  • Shadow Tiger Stripe custom print design

  • Certified mulesing-free Merino wool from Australia

  • OEKO-TEX® STANDARD 100 fabric certification

Material Composition: 67% Bamboo Rayon / 28% Merino Wool / 5% Spandex, 200gsm

Care Instructions: Turn inside out, machine wash gentle cycle cold with like colors. Skip bleach. Line dry or tumble dry low. Avoid high heat to protect stretch fibers.

Fit: Athletic cut



UPC: TD-BB1-STG-SM
Fit
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