Sunshine has pilling on the inside back where my shorts label rubbed. Also has pilling on back under shoulder blades where my camelback rubbed. (see pictures) She is still a great dress and has a lot of use left in her. DRESS FABRIC (nuumuu.com) Nuu-Muu's dress fabric is a magical blend of silky polyester (83%) and 4-way-stretch spandex (17%) that feels incredible on your skin. The fabric weight was specifically chosen to drape beautifully and offer just the right amount of support. What's more, it has the following super-woman attributes: Doesn't show sweat Not see through Never wrinkles Breathable Quick dry SPF 50+ Thank you for shopping my closet! Please leave a comment with any questions about this item.