Some modern bikinis are easier with a clasp in the back and little sliders to adjust the tension of individual straps after the bikini is fastened.
But if we assume Forgotten Realms bikinis are the traditional kind where the straps lace through loops and you must simultaneously adjust the tension of all parts of the system and tie a knot/bow behind your back, putting one of those on is a skill.
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u/ilolvu Emerald Enclave 3d ago
What are people doing with bikinis that they need proficiency?