This item will be shipped by [page="merchant_info"] Optimum Store[/page] . Free returns within 15 days. For detailed information, click [page="return_conditions"][/page]. It will not be visible from the outside when worn under clothing - it is durable and flexible in minimal dimensions. With its easily adjustable double strap design, it pulls the shoulders back for those who have limited movements and have to stand in similar positions for a long time, ensuring that the spine remains in the correct position, and prevents the formation of a hunchback that may become permanent over time due to poor posture. You can easily achieve perfect posture – start standing and sitting up straighter. You can easily use it in every aspect of your life, not just while sitting at the computer or driving. It can be worn very comfortably under or over clothing. It is virtually invisible when worn under clothing. It should be worn daily. Wear it for 10-20 minutes for the first few days - adding 10 minutes each day thereafter - your back and shoulders will slowly adjust and you will create muscle memory for correct posture. It is suitable for all sizes with its adjustable belts. Men and women can use it easily. It can be washed at 30 degrees.