- Celine 23 popular rain boots, the upper feet are soft and waxy, so comfortable, no matter what leg shape you have, you can instantly become straight, they are very flattering and make your legs look longer, the best ones on the Internet Wellies! Upper: TPU one-piece molding. Inner lining: no lining. Sole: TPU one-piece molding. Number of yards: 35-39 (40 pieces are custom-made and cannot be returned or exchanged).