If you're looking for an item in the middle of the price range, consider these Kenzo Knee High Gladiator Sandals. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth taking a look at these Kenzo Sandals. This piece is ultra popular and, just as importantly, not too pricey.
If you can afford it, then what you're looking for is these Kenzo Flat Sandals. It's more expensive but worth your money. While you're at it, also have a look at these Kenzo Wedge Sandals. Yes, this item is expensive, but it does not mean it's not worth it.