Helikon ECWCS Trousers Generation II Camogrom 100% Nylon We recommend that you measure your waist and compare your measurements with our drop down menu 33" - 36" stands for 'Waist' and the numbers are measurements in 'inches' Waterproof: 10 000mm. Breathable: 5000g/m/24h. Windproof. Taped seams. Material: 100% Nylon Zippered fly opening (YKK zipper). Elastic waist with drawstring. Knee reinforcements 2 pass through pockets. 2 large cargo pockets. Calf-high side-zippers with hook-and-loop cuffs