My son Mickey purchased, thanks to sales of Quick Mick Cozies, an REI Sub Kilo 20* down bag. We just got back from our 3rd trip with it, and the bag has been perfect for him. Unfortunately though, we found a small tear of about 1 to 2 cm's, probably the zipper getting snagged. He bought the bag on sale, and it's still available.
Should we repair it? And how?
Or is a repair not worth it and I should just exchange it?
I don't mind taking the time to repair it if there's a solid, reliable way to do so.
Thanks!

