Package Contents: You will receive a Neck Pack and a Waist Pack. . The adjustable design allows it to fit most adult neck and waist sizes. PREMIUM MATERIALS: Our packs are made of high-quality reusable velvet inner and waterproof TPU outer, which are washable and soft, safe and effectively leak-proof, so you can use them without worrying about leakage. They can bring you a comfortable using experience. Intimate design: Compared with button design, we adopt Nylon Sticker and elastic band design, which makes it easier to adjust the strap length according to your body shape. Easy to use: Extremely easy to put on and . They allow you to enjoy packs without staining your clothes. Both are freely adjustable to accommodate different waist and neck sizes. Colour:Black Material:cotton cloth Package Contents: 1 x pack wrap for waist 1 x pack wrap for neck Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.