If you are shopping for a gym bag or duffle bag on Amazon, you might be hard pressed to know if the bag you are buying is big enough. Some of them will say they are large but they aren’t really.

One good way to gauge how big a bag is look for its litre size (e.g. 60L) Roughly speaking, there seems to be four ranges that gym bags or duffle bags come in:

• 40 L – small
• 60L – medium and a typical gym bag
• 100L – large. Good if you have a lot of gear.
• 150L – extra-large. Likely a good size for hockey gear.

If you just have a few items, a small might do it, but something in the medium range might be more versatile and typical for a gym bag. If you have equipment to carry, though, you want to get something in the large or even extra large size, depending on how much equipment you have.