These clean-looking trainers are crafted from leather that has undergone a metal-free tanning process. Featuring a perforated upper, lacing with blind eyelets and a lace keeper at the tongue. Padded around the opening for extra comfortLeather liningInnersole of natural corkMetal-free tanning means that a hide is converted to soft and supple leather using vegetable or synthetic extracts instead of metal saltsINSOLE LENGTHSize 40 = 268 mmSize 41 = 270 mmSize 42 = 276 mmSize 43 = 283 mmSize 44 = 293 mmSize 45 = 296 mm