Durable cotton/recycled polyester/spandex fabric wicks moisture and stretches a bit to let you move; double-layer fabric reinforcements at knees and thighs withstand abrasion Adjustable elastic shoulder straps let you move with ease and make it easy to get in and out of the overalls Utility chest pocket is a perfect fit for cellphone and pencils Jeans-style coin, hand and back pockets plus hammer loop supply you for work or play REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world 73% cotton/25% recycled polyester/2% spandex