Just in case the shift runs long, I keep a spare shirt rolled up at the bottom of my duffel bag.

What does Just in case the shift runs long, I keep a spare shirt rolled up at the bottom of my duffel bag. mean?

Just in case the shift runs long, I keep a spare shirt rolled up at the bottom of my duffel bag.

Just in case the shift runs long, I keep a spare shirt rolled up at the bottom of my duffel bag. in other languages