CleverPosture

https://www.cleverposture.com/cleverposturecorrector

Benefits:
✔️Develop your perfect and confident posture – by standing and sitting straight
✔️Eliminates pain and discomfort from sitting with rounded shoulders in front of the computer
✔️Wear all day to maintain your healthy posture – it is nearly invisible under your clothing
✔️Low maintenance - easy to clean
✔️Children-friendly – helps establish a positive and healthy habit of maintaining straightened back from young

Features:
Automatic vibration reminder to alert you when your posture is deteriorating
Comfortable and lightweight nylon can be worn under or over clothing
User-friendly – put it on and adjust straps by yourself
One size fits all!