Size charts are available for Buckle Jeans, varying from brand to brand. On its website, a size guide is listed on each pair of jeans. The size guide can be found on the right side of the page directly beneath the waist/length.
On the BKE Harper Boot Stretch style of Buckle Jeans, the size guide provides details on both inseam and waist size. It allows shoppers to decide which size to buy, such as size 0, 6 or 10 with waist size of 25 inches, 28 inches or 30 inches, respectively. The list also shows buyers whether to order short, regular or long jeans.