Amul Ultima Bodywarmer Men's Thermal Top & Trouser set, Extremely Warm- Advanced insulated with polyfill wedged between two layers of cotton. Feather Soft- Use of polyester cotton fabric for soft velvety feel. Quality Sewing- Finely stitched for aesthetic appeal and zero irritation. Extremely Thin- Light weight lean fabric and lithe for ease. Moisture Absorber- Soft brushed inner surface that absorbs moisture from skin.