Playful Promises Coupon Codes Playful Promises is a UK lingerie company selling a full-size range of quirky, flirty designs worldwide. Inventory includes iconic brands, such as Bettie Page Lingerie, Felicity Hayward, Peek and Beau, and Wolf and Whistle. Playful Promises carry bra sizes from 32A to 44K and U.S. clothing sizes four to 26. This company is eco-friendly and includes clothing made with Repreve, a polyester fabric made from recycled plastic. For every order you place with Playful Promises, they ll plant one tree through the One Tree Planted organization.