The Adjustizer for a Perfect Fit in the waist! Each Adjustizer buckle slider on either side is adjustable by a full 2'' allowing a total of 4" range in the waist.(example, a size 36 will have a range of 34 through 38.) Then you put a belt through the loops the slider is virtually hidden. Double layer in the seat and expanded room in the seat and thigh. Polyester material.Note:slacks have an unfinished length. Altered slacks are non-returnable.