Kate Middleton owns a pair of brown suede boots from Gianvito Rossi.
They feature a large block heel, pointed toe and side zipper.
The Princess debuted the boots at a rugby match in November 2022. She’s worn them six times in public, in total, to date.
Most recently, to visit Cornwall in February 2023.
Gianvito Rossi have confirmed they made the boots for the Princess. As far as I understand, they’re bespoke—a custom creation.
Gianvito Rossi currently sell lots of similar pairs of boots, as you can see:
From left to right: Gianvito Rossi Heeled Suede Boots at FarFetch; Gianvito Rossi Suede Knee high Boots With Pointed Toe at MyTheresa; Gianvito Rossi Calf-Length Boots with 60mm heel at FarFetch; Gianvito Rossi Glen Boots at 245.
Kate’s boots are most similar to the ‘Glen’ style in Texas brown. Except, Kate boots have a pointed toe, not a rounded toe.