Swim short Belt with SIR. branded clasp at waist Seamless front Fully lined Exclusive SIR. print Lightweight lycra fabrication with generous stretch Designed to be form-fitting, if you are in between sizes we recommend sizing up Model 1 is 5'10" / 178cm and wears a size 1 Model 2 is 5'9'' / 175cm and wears a size 3