The 25 Best Organic Cotton Dresses For Spring & Summer 2025 Conscious Womenswear Esse Organic Cotton Maxi Dress in Summer Florals Organic Cotton Shirt Dress Electric Blue Model front image of Cos organic cotton shirt dress in blue Organic Ella Organic Cotton Shirt in BLUE MULTI White Stuff. Ruffling detail adds a playful twist to this variation on the classic shirt dress. The full length button closure, extending from the pointed tip collar, is cleverly masked highlighting the gathering details on the tiered dress skirt. Ruffling detail on the shoulder alludes to a long sleeve, finished with an elasticated, ruffled cuff. Made with organic cotton: non GMO seeds are grown on land free from pesticides and synthetic fertilisers, lower water use, and farmed using crop rotation which is better for soil health.