The GEKKO Chelsea boot is made on a Goodyear welted leather sole. - Chelsea boot - cow suede - cow lining - leather & rubber sole - Goodyear welted construction Measurements: Insole length / width 40: 28,6 cm / 9,9 cm 41: 29,3 cm / 10,1 cm 42: 29,9 cm / 10,3 cm 43: 30,6 cm / 10,4 cm 44: 31,3 cm / 10,6 cm 45: 31,9 cm / 10,7 cm 46: 32,6 cm / 10,9 cm Style no. TLCB1004