This back brace opens shoulders and straightens back to provide effective posture correction that improves confidence and relieves painComfortable, soft shoulder straps reduce friction; correcting your posture and straightening your back without digging into skinHighly adjustable design with 3 sizes to choose from fit waists from 23 to 50; durable velcro keeps corrector secureEasy to put on spinal alignment; simply put on the corrector like a backpack, fasten the waist belt, pull the elastic straps, and attach them to the waist beltStart improving your posture today; the comfortable, low profile design is great for work, home, or light exercise About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.