Get cozy and show your eco-friendly side with the earthy Acorn Via Perf Ballet slipper. The moisture-wicking sweater-knit lining offers a soft next-to-skin feel, while the cushioned footbed adds extra interior comfort. .Easy-to-use.Flat-rate discount. The non-slip rubber outsole of the Acorn Perf Ballet flat allows for indoor/outdoor wear. This women's slip-on lounge shoe boasts a supple, water- and stain-repellent suede upper with flower stitching and underlay accents for fun, flirty appeal