53% organic cotton, 43% bamboo viscose, 4% lycra? spandex, 220gsm brushed back fleece; Temperature regulation, UPF 50+, moisture-wicking, anti-odor; Made with organic cotton and renewable bio-degradable bamboo fibers ; Waistband with encased elastic; Flat draw cord with metal tipping exit to outer pant with metal grommets; Soft twill label at inner back waist band; Open side pockets with rib hem; Drop logo mark embroidery at left bottom pocket opening; 2" splits at lower leg outseam; Care and content label sewn into waist band at back left; Sewn in care and content label at lower left side seam; Semi-fitted with open bottom; Fabric and garments are manufactured in a facility 100% powered by solar and wind energy. Fabric and garments are manufactured in a GreenCo certified facility. 450g of CO2 are saved with the production of each garment