This is a decision that will affect how your Chelsea boots wear over time (and where you can wear them). Traditional leather is great for its versatility and durability, but suede is going to look more luxe at the cost of requiring more upkeep. Basically, you can wear leather in far more weather conditions than suede, and that goes for any type of shoe—not just Chelsea boots. Either way, you'll want to make sure to treat either material before wearing your boots; just make sure you have a solid brush and cleaner if you opt for suede—you'll be investing time in maintenance.