Men's Thermal Underwear Set

Detailed Specifications

Fleece Lined: Our short fleece inner layer is blended with calorific fiber, creating a soft and warm sensation. The fleece forms an air insulation layer through moisture from your skin, keeping you warm as if you're basking in spring sunshine even in winter.

Selected Fabric: International yarn standards ensure the natural fabric used in our SIMIYA Thermal set. Three-dimensional tailoring technology enhances comfort, and no chemical dyes are used, eliminating unpleasant odors. This set resists static and cold effectively in autumn and winter.

Light & Formfitting: Featuring a weight of XX grams and a thickness of XX cm, our set is as light as a second skin, providing warmth without any burden under heavy coats. Whether you’re lounging at home, working in office attire, or hiking outdoors, the suitable and comfortable wear experience helps you stay slim and fit.

Fly Hole & 4-WAY Stretch: For convenience, we've added a fly hole for men, allowing you to answer calls comfortably. Our 4-WAY stretch design offers unparalleled freedom, ensuring you can move freely. Whether you’re into sports or simply enjoy outdoor activities, SIMIYA Men Long Johns Set keeps you company.

Certified Durable: Our super flexible spandex ensures strong extensibility, preventing shrinkage and shape changes. Washing color fastness is over 3.5, so you won’t have to worry about color fading during washing. If you have any suggestions, please contact us; we’re committed to serving you with full satisfaction.