Summarize this article:

When purchasing men's jeans, look for inseam measurements on the back label. They will typically be listed with waist size first and inseam second, so a pair of pants marked 34x32 will have a 34in (86cm) waist and a 32in (81cm) inseam. Women's jeans rarely list the inseam, so you may have to consult a store attendant, make a conversion using the brand's sizing chart, or measure the seam yourself. Websites like Search By Inseam allow you to find the inseam measurements for popular pant brands. Though compact shoes and sneakers won't make a significant difference, high heels and similar shoes may. In general, add between .5 and 1 inch (1.3 and 2.5cm) to your inseam measurement to accommodate raised shoes. If possible, measure your inseam while wearing the raised shoes to get a more precise number. Over time, jeans made from cotton, linen, and wool may shrink, something that will affect the inseam. If purchasing a name brand pair, search online for information on how much you should expect the pants to shrink. If necessary, purchase pants with an inseam that is about .5 inches (1.3cm) too large, giving the legs room to shrink.
Look for jeans that match your measurements. Add extra length if you plan on wearing the jeans with raised shoes. Check the jeans' material to see if it will shrink.