Heat makes you small. All you want is a single garment that covers the necessary parts and then stops talking. Anything with layers, anything with structure, anything that requires a slip or a second thought becomes instantly unbearable when the temperature climbs. A dress that works in the heat is a dress that gets out of your way: thin fabric, simple construction, minimal seaming. It sits on your body without clinging and without flapping. It does not require adjustment, tucking, or a second person to zip it up. It is literally just cotton or linen that has been cut into a shape that fits, and that is all it needs to be.

Ulla Johnson's Celie Cotton Mini in Ciel and Chiara Cotton Ruffle in Petunia both read as almost accidental in their simplicity. Frankies Bikinis' Belladonna Floral and Devon Lee Carlson Lalala Jersey are equally undemanding. They are not trying to look expensive or impressive. They are trying to get you through the day without a single unnecessary sensation. The cotton reads thin without being sheer, the cuts are generous without being tentlike, and they dry fast if you end up in a sudden rain or a sprinkler without warning. This is what heat dressing actually means: abandon complexity entirely.

On the hottest days, even a simple dress feels like too much fabric. Two pieces with air between them become the answer. St. Agni's Organic Cotton Ballerina Top and Wool Cami both work solo or layered with the thinnest possible bottom. Frankies Bikinis' Emma Thermal Tank in Blush is loose enough to feel like air. Tibi's Eco Poplin Side Drape Top drapes away from your body instead of sticking. Pair these with the flattest shoes available: St. Agni's Classic Ballet Flat in Coffee or Suede Minimal Flat, or go barefoot in Cult Gaia's Soriah or Colette Sandals. The equation is: fewer layers, more air, fewer decisions.

The mistake most people make in heat is trying to look interesting. You do not have the energy. Your body does not have the patience. The dresses and tops that actually get worn in July and August are the ones that stop trying and just become a thin excuse to be clothed. Ulla Johnson, Frankies Bikinis, St. Agni and Tibi all make pieces that understand this principle of absolute simplicity. If you take one thing away, it is that hot-weather dressing is about surrender, not solutions. The less you own the pieces, the more you wear them.