[Zipper] 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.

[Empty] 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.

[Empty] So stoked these exist... I realized this is exactly what I needed: small, light storage for odds and ends that pack down small and light, but ALSO each of them can be used as a day sling WHAT!? So great--looking forward to taking all 3 with me and having options for a trip down to the pool to around town, or on a trail. Also these can be strapped to your bag (I have the 45L travel pack) for quick access so it's a no-brainer for me to get these.

[0.115 lb] 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!

[Black] 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.

[Universal] 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.

[Black] 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.

[0.115 lb] I've bought 3 black ultralight packing cubes. Sizes: Small | XS | XXS. They are indeed featherlight, since they weigh in at 43 g | 27 g | 20 g. The bags are not see-through which is great for taking it out. i will use them for packing and hiking. For my fellow Eastern European buddies, the small bag will fit a full adidas tracksuit and a book. For all other people this means it will fit two average size shoes (mine are 43 EU, still fits)

Very easy and simple design, yet sturdy. overall happy.

[Black] 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.

[Universal] My 3 small cubes fit perfectly in my 45L PD back pack. Easily compressed and very hardy. Highly recommend