American Express

Designed for men who want warmth without bulk, these Mens Ultra Thin High Elastic Warm Pants offer a sleek, second-skin feel that moves with you through every activity. The smart nylon-spandex blend delivers just-right warmth while staying incredibly flexible, making them the perfect base layer for chilly mornings, gym days, or everyday layering under jeans or heavier pants.

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Key features that stand out

Fabric blend optimized for movement: 77% nylon plus 23% spandex delivers a close, flexible fit that stretches with every stride, bend, and sit-stand transition.
Ultra-thin with warm performance: Engineered to feel light on the skin while providing comforting warmth—great for layering under other garments or wearing solo in milder cold.
Color variety for easy styling:Choose from black, white, yellow, purple, blue, or red to coordinate with your wardrobe and mood.
Size range designed for Asian markets: Sizes 165 (M), 170 (L), 175 (XL), 180 (XXL), and 185 (XXXL) accommodate a range of heights while preserving a snug, athletic silhouette. Note: Asian sizes run 1–2 sizes smaller than European/American standards, so consider sizing up if you’re between options.
Elasticity that supports everyday activity: The high-elastic knit adapts to gym sessions, commuting, or relaxing at home without digging in or slipping out of place.

Who is this for?

Ideal for men who want a versatile base layer or light thermal option that doesn’t add bulk. It’s perfect under jeans on frosty mornings, as a comfortable training layer, or as a breathable, year-round option for daily wear. If you value a tight, athletic fit that moves with you—without feeling restrictive—this pant is a smart addition to any cold-weather wardrobe.

How to choose your size

Size guidance aligns with the listed Asian sizing. If you’re between two sizes, choose the larger one for a comfortable, no-pinching fit. Allow 2–3 cm of variance from manual measurement, and refer to the size chart to ensure the best match for your height and leg length.

Care and longevity tips

To preserve the stretch and color over time, wash with similar colors on a gentle cycle and air-dry. The durable nylon-spandex knit resists pilling and retains its shape after repeated wear, so you can rely on these pants through many seasons of layering and activity.