Product Overview
Cold-weather clothing starts with the layer closest to your skin. Rothco Thermal Knit Underwear Bottoms provide soft, breathable warmth underneath your regular trousers, giving you an extra layer without replacing the clothing you already use for outdoor activities. These thermal long johns also work as pajamas when you want something warm to wear around the house or at bedtime.
A close fit for layering under trousers
The circular-knit construction creates a snug fit, making these bottoms suited to wearing beneath field pants, hiking trousers, or everyday clothing. For cool-weather airsoft games, they let you add warmth underneath your usual field outfit rather than changing your entire loadout. The same layering approach is useful for camping trips, walks, and other activities where you expect to spend time in the cold.
An elastic waistband helps hold the bottoms in place, while elastic at the ankles keeps the lower openings close-fitting. Together, these details help keep the garment positioned beneath your outer clothing. When choosing your fit, remember that these are intended to sit close to the body as underwear, rather than fit loosely like outer trousers.
Thermal warmth with a soft feel
The thermal-knit fabric combines warmth with breathability, an important consideration for a garment worn next to the skin for extended periods. Its soft feel makes it suitable for both outdoor layering and relaxing indoors. You can wear the same style of bottom beneath your clothing during the day or on its own as sleepwear, depending on where you need the extra warmth.
- Product type: Thermal underwear bottoms / long johns.
- Construction: Circular knit for a close, layer-friendly fit.
- Fit details: Elastic waistband and ankle openings.
- Fabric qualities: Soft, breathable thermal knit.
