Spring/Summer 2026 womenswear calls for breathable fabrics that keep customers cool and comfortable. This article compares linen, cotton, and viscose, highlighting each material’s advantages and ideal use cases in warm-weather collections. Boutique buyers will learn how linen’s crisp airflow, cotton’s versatile softness, and viscose’s silky drape each contribute to SS26 trends. The discussion includes sustainability notes, trend insights, and practical sourcing tips to help wholesalers curate a balanced SS26 lineup that delivers style, comfort, and summer-ready performance.