Kate Middleton is a true fall fashion icon. If there’s one piece that’s become a signature staple in her autumn attire, it’s her Blundstone 550 Chelsea Boots — an affordable and versatile boot that I’m also a huge fan of!

Princess Kate has styled the Australian-made boots on multiple occasions, including for outdoor outings with her signature skinny jeans, knit sweaters and beloved Barbour wax jacket. I snagged these Kate-approved Chelsea boots years ago after seeing her wear them, and I have to say, they’ve become a mainstay in my own wardrobe, too.

Chelsea boots have long been a staple in fall fashion, but many brands are far prettier than they are practical. Not Blundstone, though! Its built-to-last unisex boots have a decades-long toughness that’s reflected everywhere from the heavy-duty, water-resistant leather to the thick, pound-the-pavement sole.

I’ve owned my Blundstone 550 boots for almost five years now, and try as I may, I can’t find another durable, ankle-length boot that even comes close to their performance and practicality. My Blundstones withstand mud, torrential downpours, snow and heavy everyday wear without showing the slightest wear and tear. I even style them with tights, dresses and skirts for a well-deserved night out, and continuously get compliments on the royal-approved style!

What really puts these beautiful boots over the top is their insane comfort. The true-to-size boots fit snug and secure, with a contoured, comfortable fit that’s so soft and cozy, you’ll forget you’re wearing them.

If you’re a collector of Royal Family fashion or simply want to rock a boot that boasts an impossible blend of style, comfort and durability, snag your Blundstone 550 Chelsea Boots now before the cold weather sets in.

Get the Blundstone 550 Chelsea Boots for $210 at Zappos!