● Product Features ● Features of Radipoka® ・Converts light into thermal energy and simultaneously emits far-infrared rays, creating comfortable warmth! Detailed Specifications ・The lining of the pockets is also tricot brushed for warmth. ・Elastic waistband for easy on and off! ・Lightweight and comfortable to wear. Convenient Pockets ・Cargo pockets are convenient for storing small items! With Carabiner Loop! ・Convenient for hanging tools, small items, gloves, towels, etc. needed during work. 4L size, HEAT ASSIST W Warm Work Series work pants, with heat retention function. - Color: Gray - Size: 4L - Series Name: HEAT ASSIST W Warm Work Series - Function: Thermotran Thank you for viewing. Size...4XL (5L) or larger