[Empty] I bought three of these in XXS and XS sizes. I planned to use them for cords, meds, and other small misc items when traveling. I’ve found myself reaching for these bags for every day use also. Great to put some small gear and toss in the daypack when out photo-hiking. Also makes a good wet sack for my bathing suit. I can think of so many uses for these bags. They are well made and roll up very small when not in use. Great that they can clip to a belt loop or another bag, or be used with a strap.

[Zipper] I used to throw all by bathroom/toiletry items in one big bag, and every night I had to dump the bag. I’ve bought an XS and XXS cube - they will be great for differentiating and organizing. One cube is mesh so anything that might be wet can breath. I’m thrilled to have them, and expect more will be added.

[Zipper] Something I haven't seen mentioned anywhere is how well the large (10L) bag fits over the small PD camera cube. A great way to provide additional weather resistance for when the small cube is worn as a bag. There's just enough space to fold back the lid of the small cube and tuck it inside the ultralight cube for quick access. Having both also means that should you need extra space in a pinch, you could take out the small cube from the ultralight and use them independently.

The durability is likely to be an issue, as with essentially all ultralight fabrics. This looks like a sil-nylon, so a gear aid sil-patch should work well. So far 5* for the design and features. Durability and actual real-world weather testing might affect the long-term rating.

[Universal] I love my xs packing cube, it fits in my everyday carry bag and is always ready to put my valuables in to keep dry when I get caught in a downpour while commuting on the bus.

[Zipper] For me these packing cubes are exactly what I want without the flaws of many other brands.
- The fabric is soft and pliable while also being durable. II hate the stiff ones that won’t mold to available space. These adapt to suitcase or backpack
- Clean/dirty - I love the two compartment design where you can separate items without needing an entirely different cube. It is also great that the divider molds to adapt to what is in the compartments so no wasted space
-Compression zipper allows same cube for smaller or larger amounts of clothing
- No mesh - I know some people like mesh for air circulation but I don’t like mesh because it usually isn’t as durable and becomes easier for clothing to take on other smells within the back.

[Empty] I love the new eclipse color! I really hope you make some of your other bags with it! As far as size, the Small is perfect for a pair of men’s pants rolled up and maybe a couple t-shirts. Which is great for spare clothes when on a two or three day hike. Also great for an extra couple shirts and socks in your carry-on. The XSmall bag is perfect for organizing 8-10 thin socks.

[Black] ...when they fit your use case, they are absolute worth it! For me, the ultralight packing cubes are exactly what I needed. I own a 30l everyday backpack, and they fit like a glove. The regular packing cubes sit a bit too tight, if you tend to use the backpack's flaps side pockets. These don't. Three of them easily stack, four, if you force it. With my camera, an extra lens, tech pouch and toiletries, two of them fit on top. To put it in perspective, I can fit t-shirts, undies and socks for four days into one cube (s). That leaves another for a light sweater and some pants. But the real game changer is, that 1 the cubes are waterproof and 2 the passthroughs on the sides. I don't mean the loop, I mean the passthroughs where the fabric foulds and is stitched together. Because this way, you can pass the lower external straps of the everyday backpack though and put one cube under the backpack, without dangling around, like it would do, if you'd use the loops. It sits tight underneath the backpack. That expands your space by easily 6 to 10 liters!
That's why I always carry one of those cubes in my backpack. If I should shop groceries and need more space, I can expand my capacities on the fly. I love it!

[Black] I recently got the Peak Designs Ultralight Packing Cubes (set of three: S, XS, XXS) and they’ve been a game-changer for my travels. These cubes are incredibly stretchy, perfect for fitting all those loose odds and ends, ensuring nothing rattles around in my bag. As expected from Peak Designs, the quality is top-notch. I use them frequently for my tech consulting trips, and they make packing so much more organized and hassle-free. Highly recommend!

[Empty] I commute in my bike a lot, and during the hot months I end up carrying extra shirts, deodorant, bug spray and a bunch more doodads that usually just bounce around in my backpack.

I bought three of the UL Packing Cubes and I can chuck everything that's loose and carry it more comfortably. And what's best is that attaching an external strap makes it the perfect carry solution for simple walks when I just want to bring my phone and sunglasses and don't need a whole bag.

Materials are quality and the eclipse color is beautiful.

[Zipper] I bought these for a backpacking trip and they were so useful I’ve began using them daily already. Each size has its own use and I’m surprised at the ease of access and sturdiness of zippers and fabric.