Silly SilasShorty Marshmallow Sky Melty Colors Shorty Organic Cotton Tights Marshmallow Sky Core Shorty Only $ 9 Organic Basics Flex Shorty Only $ 15 Organic Basics. Shorty Organic Cotton Tights Marshmallow Sky from Silly Silas. Shorty Organic Cotton Tights Marshmallow Sky provide optimal comfort and style in one great package. Crafted with a unique blend of organic cotton, these tights are cute and form fitting, and offer a lightweight feel for all day wear. COMPOSITION 100% organic cotton(oekotex)