UA Expandable Sackpack

Style # 1300203
Height: Size:
UA Expandable Sackpack
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UA Expandable Sackpack

Product DNA

  • UA Storm technology delivers an element-battling, highly water-resistant finish
  • Zippered main opening for easy loading
  • Interior mesh pocket zips shut for secure organization
  • Breathable mesh shoulder straps
  • Zippered side gussets add volume when unzipped
  • Webbing loops on front panel for added attachment points
  • Dimensions: 14.2" x 20.5" x 3.9"
  • Volume: 1,647.6 Cubic In. / 27 L
  • 100% Polyester
  • Imported

Review Summary

21 Reviews


Runs small Runs large


Min. Max.


Min. Max.


The Sandpack is Ok, Cannot fit many things in it, but for carrying a few items, it does the trick.

Nice clean looking bag!

[This review was collected as part of a promotion.] I love this bag it fits a lot of stuff in it... it can expand. However I do feel like I am missing a pocket somewhere on the outside (maybe hidden in th back or somewhere) to throw my little items so they don’t get lost in the big compartment. There is a little mesh compartment inside hanging from the top but miss not having to open the whole bag to get to it... also the mesh compartment is very small could be bigger! In all a good bag though!!!!

Comfortable, big storage

The material use for the bag is of good quality, does not easily gets snagged or scratched. The size is adequate for my trips to the gym. Contents are: a change of clothes, gym belt, lifting gloves, a pair of shoes, 500ml water bottle, towel and toiletries...and I have not expanded it yet. There are loops in the front where I can attach my padlock and some other gear. The back straps are very comfortable, hardly there even when full. Would have been better if there is an outside pocket for your wallet or cellphone. Also the bag does not have a flat bottom so it keeps sliding down by itself.

  • My underarmour sackpack gym bag

As described

I am starting a new trend. The not to rate things low simply because I don't like something. I don't really like the bag. I think it is because giving a bag shoulder straps also gives a person a certain expectation. I added a change of clothing and because there is no structure - the form the shape of clothes which pushes into my back. I also don't like how the shoulder straps fit on my shoulders. It is simply odd and uncomfortable. Maybe that is how the item is supposed to fit. Oddly around the shoulders and gym items/clothes push up against your back in an uncomfortable manner. I doubt that was the intention. I would not have expected the same experience if the bag did NOT have shoulder straps like a back pack. If this was a sack or a across the torso bag - the lack of structure would be fine. I'll rate it a 4: You can easily carry your shower items, gym and spare clothes for the day. Material itself is good. I like the look of it. I simply don't care for the bag for the above reasons. Which is why it is short a star. I am considering returning the bag for a shoulder strap gym bag or doubling my work bag for the gym.

Great, but needs additional pockets

I cycle to the gym in the morning, carry my workout gear, water bottle, post work drink bottle and bike lock in my bag, When I get ready to workout I put my bike helmet in my bag. The good, it holds everything I mentioned. The wider straps are easier on my shoulders when riding from the weight. The Bad, it needs more pockets or a lager one to hold wallet, ear buds, keys, etc.


Very good design, lightweight, comfortable straps. It can fit everything for a 3-day trip. Would still have to test it's durability.

I like that you can expand it for more stuff

It was bigger than I thought it would be but I can make it work. Really like that it expands.

Red sackpack

[This review was collected as part of a promotion.] The bag is cool and comfy and stylish color. Very light too

This item is sturdy

[This review was collected as part of a promotion.] Zip-up pocket is handy for chargers, etc. It’s a comfortable pack. Not very big.

Great Gym Bag!

[This review was collected as part of a promotion.] Fits about everything I want to take to the gym. Only thing I wish it had is some support once it's on my back. Otherwise, great bag not just for gym purposes!