Collie Flat ShoesA pair of ballerina flats made for active people. These knitted, breathable and washable loafers are a must have in your shoe closet for their comfort and the flattering silhouette. Add an elegant touch to your daily outfits with these versatile designs. The Collie Flats fit true to size for most customers. Like wearing socks. Prefer a roomier feel? Consider sizing up for the perfect fit. Each shoe is knit from thread spun from plastic water bottles.