Oh Polly Black Sheer Tie Front Long Sleeve Crop Top UK 4 US 0 Oh Polly black sheer long sleeve crop top featuring a low square neckline and multiple front tie closures for an adjustable open-front look. Lightweight semi-sheer fabric with a fitted cropped silhouette and extra-long sleeves. Perfect for Y2K, going out, festival, party, or layered styling. Size UK 4 / US 0. Oh Polly, black crop top, tie front top, sheer top, long sleeve, open front, Y2K, going out top, party top, fitted crop top.