If your summer wardrobe makes you feel sticky, sweaty, or suffocated, your fabrics – not the temperature – are often to blame. Choosing eco-friendly fabrics for warm weather wear can keep you cooler, reduce odor, and dramatically lower your wardrobe’s environmental impact at the same time. This guide breaks down the best sustainable materials for hot and humid days, how they perform on skin, and what to look for on labels so you can build a summer closet that’s both stylish and climate-conscious.