Charles & Keith is fast becoming our go-to for fashion-forward, affordable footwear, and of course it has the best chunky sandals for your spring / summer wardrobe. The Charles & Keith Crossover Slingback Sandals (£69) include a chunky black sole that offsets the pale spring yellow of the crossover straps, providing a contrast to toughen up the the most delicate of looks. The strap at the back is also adjustable, meaning that you can have it as loose or tight as you wish, which can also be an extra bonus if the fabric becomes loose over time with wear. Plus, ideal if your feet swell in the summer heat, too. Finished off with white stitching around the sole, this pair tick a lot of boxes for attention to detail.