No need to buy expensive devices, simple yoga belt may help you to improve your posture and to remember to keep it. Put the belt on in the back pack stile and keep it on for 15-20 min a day.
This is how it looks.
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No need to buy expensive devices, simple yoga belt may help you to improve your posture and to remember to keep it. Put the belt on in the back pack stile and keep it on for 15-20 min a day.
This is how it looks.