It looks like Kate owns this black square buckled belt by ba&sh. She first wore it in 2019, for the A Berry Royal Christmas TV special she filmed for the BBC:
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And then again in 2022, when she visited the charity SHOUT to mark their million conversation milestone:
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Kate regularly adds belts to her outfits, harnessing the accessory’s power to cinch and enhance her ensembles. Plus, belts are a figure-flattering addition to most outfits.
Kate will often switch the belt that originally came with a garment and add her own instead, for a fresh twist. It looks like she did that with the Massimo Dutti dress she wore on the tv special, it originally came with a tie belt.
Note: if you want to see a good close-up of Kate wearing the black square buckle belt, click here to open the image in a new tab.
About Kate’s belt:
The tonal black belt features a square buckle and matching loops/keepers. It doesn’t have a hook, prong or holes for securing. The square buckle fastening system holds everything in place.
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The piece is made from black suede, the square buckle is covered with this material too.
At the time of writing, the belt also comes in camel brown. A quick Google search for other colours shows older listings in a range of hues—purple, oyster, mushroom, mustard etc. This suggests the belt is a mainstay in ba&sh’s collection.
It comes in three different sizes: 75, 80 & 85.
Buying Kate’s belt:
If you’d like to emulate Kate’s elegant style, you’re in luck! The square buckle belt can be purchased from ba-sh.com and Bloomingdales for £135 / $135.
Sustainable:
Ba&sh say the belt is from their ‘ethical’ range, which uses environmentally responsible materials (e.g. vegetable tanned leather).