Reformation Polkadot Knee Length Skirt Size Small. New Without Tags. Elevate your wardrobe with this trendy knee-length skirt by Reformation. Made from the sustainable Ecovero material, this chiffon skirt features a playful polka dot pattern in brown, perfect for a casual occasion in spring or summer. The A-line style and elastic waist with pull-on closure provide both comfort and style, while the unlined design adds to the lightweight feel.