Knee high boots cycle in and out roughly every decade, and the current return is tied to hemlines dropping and to the general shift away from the ankle boot that dominated the 2010s. A tall shaft changes the proportion of an entire outfit in a way a short boot cannot, which is the actual reason they come back. Adding a heel to that shaft is what separates this from a riding boot, both visually and in how the leg reads. The engineering is harder than it looks, because a tall shaft with a heel has to stay upright without collapsing at the ankle.

Prada's suede knee high is the cleanest execution in the group and the one that leans most classical. Marc Fisher contributes Jacie in suede with a stacked heel and Erynn in leather, and a stacked heel is the detail that keeps a tall boot from reading as formal. Schutz brings three, Parker Up and Patrice Up in leather with moto detailing, and Mikki Up in a cloak suede, and the moto hardware is what gives those pairs an edge the plain versions do not have. Jeffrey Campbell's Fanning and AQUA's Helen cover the leather middle ground. Across the run, knee high heels in suede read softer and in leather read sharper, which is the first decision to make.

Shaft circumference is the measurement that matters and the one most people ignore until the boot arrives. Suede is the more flattering material on a tall shaft because it absorbs light rather than reflecting the leg shape back, but it needs protecting before first wear. Stacked heels are more walkable than a slim heel over a full day and they hold up better on uneven ground. Moto detailing adds visual weight, which works with a slim trouser and fights with a full skirt. Pull-on styles are convenient and a side zip gives a better fit through the calf. If you take one thing away, it is that a tall boot has to fit the leg rather than just the foot, so measure your calf before ordering anything in this category. If you want to keep browsing, I also put together Suede Clogs Are the Cold-Weather Answer to the Sandal Clog Summer and Knee High Boots Solve the Hardest Weeks of the Year.