These black 1017 Alyx 9Sm flat Vibram sole leather Chelsea boots feature a round toe, elasticated panels at the sides, a rear pull tab, a comfortable leather insole and a rubber sole with a flat heel. Designed from sumptuous leather, these Chelsea boots are a no-brainer, after all, as Brad Goreski so rightly claimed: 'whether it's something with a chunkier heel or a moto style, you need a great pair of boots'.