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Poly-Spandex Long John Thermal Bottoms
Stretch thermal bottoms with 97/3 polyester-spandex blend, open fly front, elastic waistband, tagless label, and made-in-USA source detail.
Collection
Base layers and undergarments help regulate comfort during long field days, cold weather games, camping weekends, and outdoor events. This collection is intended for thermal tops, bottoms, underlayers, and clothing worn under outer gear or uniforms.Choose base layers by matching temperature, activity level, moisture management, fit, and whether they will be worn under tactical gear, paintball pants, chest rigs, or uniforms. Good layering can make a major difference during long events where weather shifts throughout the day.

Stretch thermal bottoms with 97/3 polyester-spandex blend, open fly front, elastic waistband, tagless label, and made-in-USA source detail.

7 oz polyester thermal bottoms with open fly, elastic waistband, tagless label, ribbed cuffs, and made-in-USA source detail.
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Midweight cotton Henley thermal top with 3-button placket, ribbed neckline/cuffs, tagless label, long sleeves, and made-in-USA source detail.

Tan 499 ECWCS Level 2 grid fleece thermal shirt with polyester fabric, zip-through collar, thumb holes, antimicrobial source claim, and NSN reference.

Quilted cold-weather pant liner with nylon outer shell, polyester batting, button-hole attachment, and 14°F–68°F source range.

9 oz heavyweight cotton thermal bottoms with front open fly, elastic waist, tagless label, ribbed cuffs, and made-in-USA source detail.

Lightweight performance T-shirt with 90/10 polyester-spandex blend, mesh side/underarm panels, short sleeves, and stretch mobility.
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7 oz midweight cotton thermal bottoms with open fly, elastic waist, tagless label, ribbed cuffs, and made-in-USA source detail.

9 oz bi-ply thermal bottoms with 75/25 polyester-cotton blend, tagless label, open fly, elastic waist, and made-in-USA source detail.

7 oz midweight cotton thermal top with crew neck, long sleeves, tagless label, and made-in-USA source detail.

9 oz bi-ply thermal top with 75/25 polyester-cotton blend, tagless label, ribbed cuffs, and made-in-USA source detail.

9 oz heavyweight cotton thermal top with crew neck, long sleeves, tagless label, and made-in-USA source detail.

XL FROG thermal tops with 78/22 modacrylic/FR rayon blend, NSN reference, quantity pack option, and 14°F source rating.
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Silkweight FROG thermal bottoms with 78/22 modacrylic/FR rayon blend, NSN reference, and 14°F source rating.
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Midweight ECWCS thermal bottoms with polypropylene source fabric, reduced bulk, moisture-wicking claim, and genuine issue positioning.

Tan 499 lightweight thermal top with polyester fabric, thumb holes, tagless neck, and made-in-USA source detail.

XS Regular ECWCS Level 1 base layer with Polartec Power Dry, Microban source claim, thumb holes, and flatlock seams.