These are 3D Organizer Cubes from Tom Bihn.
The top one is Iberian (red) and mesh. It is the perfect size to hold a T-shirt, underwear, bra, and pair of socks. These aren’t special travel clothes either, just my normal stuff. I’ve never packed with “cubes” before, but thought I’d see if a whole day would fit in one for those short overnight trips.
I normally use it for all those small things I pack that aren’t 3-1-1 or technology: comb, toothbrush, floss, prescriptions & supplements, deodorant crystal, flashlight, etc.
The bottom one is an Ultraviolet with plastic. It makes an amazing 3-1-1 kit and it has a small hook so it could be hung up on a towel rack. I have it on a 16” key strap so it’s easy to pull out of my bag.
Which reminds me, I need an Iberian key strap!