Chunky lug soles have become a modern wardrobe staple: they give a polished shoe a grounded, practical feel without losing its shape. A well-balanced pair combines a substantial tread with a smooth leather upper and a raised apron seam.

A deep, even sole and brushed or polished leather make the look feel considered. The tread can look substantial without making the shoe feel heavy, so check the profile from the side and notice how it moves underfoot.

I like this shape on a gray October morning with a pleated skirt and thick tights, crossing a wet street with a steadier step.

For a lug sole, I would start with the black leather Whitney Super Lug Sole Penny Loafer from G.H.BASS, which has a sculpted penny slot and the deepest tread of the eight. The Treena from Cole Haan has a burnished box-leather upper with double-row stitching, and the Hudson Lite from Stuart Weitzman keeps the sole light. My test: look at the sole from the side. The tread should be deep and even.

A brushed leather upper gives a lug sole a softer, more refined counterpoint. The contrast between a substantial base and a smooth, softly gleaming finish is what makes the combination work for everyday dressing.

Black brushed leather is a particularly versatile choice. The Carmel from Paul Green is in black brushed leather with accent piping and a textured lug sole, so it is the one I would put first. The Brandi from Vagabond Shoemakers is textured Italian leather with a stitched vamp, and the Modtray from ECCO is smooth full-grain leather with a sheen on the midsole. The Tiggy from Dolce Vita is a plain black penny loafer with a clean saddle, and the Gwendolyn from Cole Haan keeps things quiet and polished. The Dahlia from Free People adds a leather tassel on a deep lug sole.

Here is the fitting-room test. Tilt the shoe under a light and watch the surface. Brushed leather should show a soft, even sheen with no cracking at the flex point over the toes, and the apron stitching should sit straight and slightly raised. Run a thumb along the seam where the apron meets the upper: a good one feels solid, not puckered.

I would skip pairs where the leather has a plastic, wet-looking shine, because that reads as a different shoe from a distance. For October, I would wear these with wool trousers that just graze the top of the shoe, so the vamp stays visible.

Square-toe mules bring a crisp line to fall footwear. Vogue’s fall minimalist edit noted a wider move toward sharp toes and clean slip-on shapes; the appeal is the geometry: a flat, squared front with an easy, open back.

The Leyton from Dolce Vita is a black leather mule with a square toe and a slanted block heel, and the Advocate from Jeffrey Campbell does the same in smooth brown leather on a low block heel. The Pasha from Cole Haan adds a small bow. The Valen from Vaneli is black suede with a square moc toe, a chunky heel and a metal bit, and the Grand Mule from Marc Joseph New York is tan burnished-napa calf with a closed square toe. The Senia from Forever & Always Shoes is braided leather with gold hardware. If you prefer a quieter finish, look for smooth leather with minimal shine.

Check the toe box first. A true square toe has an even, straight front edge, and the corners should be sharp enough to read from across the room, not rounded off into a blunt almond. Then slip a foot in and check that the heel does not lift out as you walk, since a mule has nothing to hold the back.

I would skip a mule with a gold buckle or loud hardware if you want a plain look. Wear them with straight-leg trousers and a fine knit, and keep the legs bare or in sheer black tights through October.

The flatform mule brings a level, lifted shape to the thick-sole trend. With no raised heel, it feels relaxed and works as an easy slip-on for days when you want extra height without a steep pitch.

The Jeanne from Dolce Vita is a chestnut suede clog-style mule with a buckle strap on a 1-inch platform. The Andie from Dansko is black calf on a wooden platform with polished studs, and it is made in Brazil. The Wilka from Cordani is Italian leather with antique studs, and the Calli from Free People is soft black leather on a woodgrain platform. For cold mornings there is the Uptowner from UGG, a black leather mule with shearling lining on a lugged platform, plus the Ivanna from Donald Pliner and the Mellow from Tory Burch, both lined. The Dylan from Crocs is the lightest of the lot, with a deep heel cup on a chunky sole.

Here is the test: bend the shoe at the ball of the foot. A platform that does not flex at all will make you walk stiffly, so look for a little give or a gentle rocker shape. Then press the footbed. A shearling or wool lining should feel dense, not thin, because October mornings call for it.

I would skip a wooden platform for a long day on wet pavement unless the sole has visible tread. Pair these with wool socks, cropped trousers and a long coat.

The lug sole works just as well on an ankle boot as it does on a loafer. A substantial tread grounds the look and makes it an easy option for cooler, wetter days.

The Asher from Michael Kors and the Joan FRWD from SOREL are both black Chelsea boots, the Asher in smooth leather and the Joan in a glossy finish on a lugged platform. The Stomp Sock from Kurt Geiger London is a black pull-on with a stretch shaft and a deep lug sole. The Francis from VIVAIA is a moccasin-inspired lace-up with water-repellent technology. For wet days, the Laguna from Sam Edelman and the Revel RD from SOREL are both waterproof, and the Huey H2O from Dolce Vita is a slip-on bootie in water-resistant leather. The Danny from Loeffler Randall is brown stretch suede with a zip and a sturdy lug sole.

Look at the sole edge before anything else. The lugs should be deep and cleanly molded, with no ragged flashing where the mold met, and the sole should wrap the upper with a tidy join. Then flex the ankle: a Chelsea gusset should stretch easily, and a side zip should run without catching.

I would skip a very tall platform if you plan on long walks. I would wear these with a pleated midi skirt and thick tights, or with straight denim stacked just above the ankle.

I would decide on the shape first. For a loafer, look for a deep, even lug sole and smooth brushed leather. For a mule, look for a straight square toe and leather with a quiet finish.

Then I would check the details in order: the sole tread, the apron stitching, and the way the heel holds. One good pair in black will go with everything you own this month.

Chunky soles and clean uppers make a versatile combination for fall. Choose the version you will keep reaching for in spring.

If you love Prada's brushed-leather loafers, these pairs are worth a look too. If you want to keep browsing, I also put together Square-Toe Boots and Louboutin Heels.