Mysterious loop at back of jeans leaves people baffled – but there's a simple explanation
![Mysterious loop at back of jeans leaves people baffled – but there's a simple explanation](https://i2-prod.mirror.co.uk/incoming/article32887173.ece/ALTERNATES/s615/2_Young-woman-with-jeans-and-tshirt.jpg)
Ever wondered what the 'loop' of fabric on your jeans is for? One social media user may have finally revealed the truth – and experts have now backed up their theory