Very big bag and it's cheap. Durable but not very durable. After almost a year of playing the zippers are starting to fail a bit. Overall still a good bag.

When you're a discalcoholic and you just cannot stop buying discs that fly almost the same you've bought last week (yep, and you have to hide the packages from your wife, don't lie), it's time to step up and get a shiny new bag!

This bag is gargantuan and can hold more than 40 discs! Of course, maybe your back cannot, and it is a criterion to be taken into account (bag itself weighs 1.8kg). 

For hot summer days, it can hold 2 water bottles. The fabric seems very durable ("seems" because got if for only 1 month). Good back support. Love the "belly" pocket for my putters.

Cons : 

- the bag arrives unassembled and without instructions (youtube is your friend : "Prodigy BP-1 V2 Backpack - Setup Instructions" - same assembly for v2 and v3). It takes about 15 minutes to complete the task.

- the 2 small magnetic side pockets do not close very well. I use one for my minis, you would have to be a little masochistic to put your keys in it. 

Overall I'm very happy with my purchase, great bag with a sweet low price!