Don’t bother carrying a sports bag over your shoulder, stop an ache, also better for your bodily alignment & posture.
A versatile sports bag.
A front bag & back bag. Unclip for just a front bag or back bag or wear both.
“Consider using a sports bag designed for comfort and functionality. With features that prevent shoulder strain and improve posture, this bag includes compartments for your drink bottle, snacks, headphones, and mobile phone, both in the front and back sections. This setup ensures you have everything you need easily accessible and well-organized.”