Playtex Womens All in One Girdlel. PLAYTEX I Can’t Believe Its a Corselette is the latest range of Playtex corselette’s to replace the discontinued 18 hour Corselette. Support level is firm to extra firm. This new stylish look offers the same support as the 18 hour Corselette but produced in a lightweight fabric consisting of 53% elastane 47% polyamide without the weight and rigidity of the 18 hour Corselette resulting in the same superb support and easier to put on especially for wearers who experience difficulty pulling on heavy control underwear. Thousands of tiny air holes keep you cool and comfortable.