Synthetic materials are prevalent in swimwear for their durability, stretch and quick-drying properties, but carbon-negative apparel brand Sleep Inc. debuted Merino Swim Shorts—the world's first swim shorts crafted from 100% natural materials. Free from plastic and microplastics, these swim shorts make the most of ZQ-certified Reda Active Merino wool and are lined with a biodegradable Yarnaway mesh material.

Two years of research and development went into perfecting the high-performance swimming shorts, which are naturally odor-resistant, breathable, temperature-regulating and quick-drying because of the features of ultra-fine merino fiber.

Every pair of Merino Swim Shorts is fully traceable so that their entire creation journey can be followed, and at the end of their usable life, these swim shorts will fully decompose in soil and marine environments.