Synthetic fabric, quite elastic, hydrophobic, breathable, does not wrinkle and does not lose its shape. Very cool in the summer heat. Two pockets on the sides and two back pockets with the back left one having a button. Inside around the waist it has the UnderArmour logo printed with elastic to prevent the shirt from coming out of place (if worn inside the pants). It is easily washed with cold water and does not need ironing. It is the best summer pants I have ever worn.