These wind pants are roomy. To determine which size of pants to purchase, it is important that you first measure a pair of your own pants that fit comfortably. Do not rely on manufacturer labels, as they are often lower than the true waist size in inches (vanity labeling). Place the pants to be measured on a flat surface and measure the width at the belt line. This measurement should be doubled to determine your true waist size. Use this true waist size to see if we have an available size that will fit you correctly.