The Volas Posture Corrector is listed with intelligent vibration reminders, support for a straighter back and spinal alignment wording, lightweight breathable daily wear, adjustable straps and a CE certified line.
The first photo is a pink X-shaped strap with a round pod at the crossing. Put the X on your back as that photo suggests, then adjust the straps. No size chart is published. Alignment wording is not a medical result.
See the Volas posture corrector page.