Why, in 2025, is it still so hard to find a bikini that supports like a bra, or a swimsuit that doesn’t ride up, gape or turn sheer the moment it meets water? With winter sun trips and end-of-year escapes on the horizon, I decided to road-test a suitcase full of the season’s most promising pieces to see which ones actually flatter real bodies. From high-street heroes to more luxury labels, I tried styles from Triumph, New Look, Bravissimo, Seafolly, Beyond Swim and celeb favourite Away That Day,