This is a bag that I bought online from my go-to shopping site, ZALORA. I picked this because I wanted a belt bag for biking, and it's cool that it can convert into a backpack. It's a bit heavy as a belt bag, though, because of the folded material.
This Parachute brand bag is very colorful, as you can see. The tag said it's made of the same material as parachutes, that's why it's light and water repellant. It called itself "nifty and clever", indestructible and a gift to environmentalists. I don't know for sure, but it had me at water repellant. You know, what if it rains while I'm biking? :-)
What bag would you recommend for biking?