Here is a solution to bra straps falling off your shoulders..
I tried 6 slipping bra straps solutions and here's which ones actually worked - HelloGigglesHelloGiggles
Do you experience these symptoms? If so, you NEED to do something! β Curvy Kate UK
Say goodbye to falling bra straps with these helpful tips
Slipping Bra Straps? We Can Help - Why Bra Straps Aren't Staying On Your Shoulders And How To Fix - ThirdLove
Why Are My Bra Straps Slipping? - HerRoom
StrapTrap β The Bra Strap Holder
The Top 5 Reasons Why Your Bra Straps Fall Off Your Shoulders
How to keep bra straps in place - Quora
Chic Secrets Silicone Shoulder Pads - Non Slip Bra Strap Cushion Keep Bra Straps from Slipping and Digging - Women's Shoulder Strap Pads for Doing Sports & Running (Black) : Clothing
Zivame - πAre Your Bra Straps Sliding Down? πIf This Is A Problem For You, Try Tightening The Straps! If This Doesn't Work Out Either, You Need To Pick A Different Bra
How To Tighten Bra Straps
Why Do My Bra Straps Keep Falling Down?