Heavyweight 8.25 oz cotton-rich fleece. /n Solid colors are 80% cotton, 20% polyester. /n Heather Grey is 70% cotton, 30% polyester. /n Charcoal Heather is 60% cotton, 40% polyester. /n Front pouch pocket, matching drawstring and rib cuffs. /n Ethically sourced following the World Responsible Apparel Practices Standards. /n Reviews... /n HVAC Contractors and HVAC Service Techs will love this funny HVAC humor design. /n Pack your HVAC tools and these fun gifts and enjoy your getting customer laughs in your in heating and cooling... /n Returns are free and Exchange or money back guarantee for all orders. /n