The newest version of the BP-3 backpack is made of light but durable nylon fabric, which is very scratch and wear resistant and water repellent. The zippers are reinforced and the bottom has a waterproof fabric, so you can put the bag on wet ground without worry.
The backpack can hold around 17 discs at a time and there is also a putter pocket on the front. On the sides, you can find drink bottle holders as well as smaller pockets and a hook for a towel.
All in all, the bag works for beginners as well as more experienced players due to its light but versatile features and reasonable price.