Water Damage of the bag
If you carry mineral water such as Evian, make sure the top is screwed tightly after you have had a sip. Leaks can leave water marks. I had about 300 ml of Evian leak out into my Floto bag last year, annoyingly it left a watermark to half way. Despite finding the problem quickly and wiping the residue out of the bag with tissues, the residual water continued to gradually seep up the bag leather by capillary action. I left the Floto bag to dry naturally for 2 days as I didn’t know what else to do.
Once dry I was hugely disappointed. The watermark ridged mountain like darker stain was very noticeable. So having nothing to lose I dunked the whole bag for a few minutes in a bath of lukewarm water rubbing the water into the bag with my hands. Then I drained it dry on an oven rack over a sink. I stuffed it with kitchen roll paper and let it dry naturally. When dry I must say it seemed to have evened out the stain ridge and I was able to use the bag again although it did take a couple of weeks use to soften up again. The inside striped fabric was a little wrinkled, but was not awful. The bag does look acceptable again and suits the careworn distressed look it develops with time, but frankly I preferred it pristine new.
My point is that the bag looked much better before the accident. I now make sure the bottle cap is secure on any container stored in my bag and in every other bag!