These are great clothes. I ordered the Tactical Ubacs Suit Pixel MM14 just to support Ukrainian businesses. I was amazed and pleased at the quality and comfort. I can't speak to durability yet, but they are by far stronger than US issue from the 1990s by comparison.
The Ubacs is comfortable on its own, and with a long sleeved T-shirt underneath great for cool weather. I don't have any worry for the coming summer either--sometimes I wear long sleeves due to work and this should excel in protection without overheating.
The pants: what can I say? They are comfortable but seem like they will wear like iron. Everything just works and seems to be located in just the right place. The designer must have really thought out what is needed for comfort but active use. If you stuff your pockets (like me) you'll have to worry about how much weight you are carrying, there's that much cargo room. I wish I'd have had a pair or three when I was younger and more active in my work. These days I drive trucks. So I can tell you these are fine for sitting extended periods too. And when I do have to get out and work, they have no problem protecting my legs from the ground or random sharp metal in the environment.
I ordered the warm weather set because it was cold in Ukraine and didn't want to impact the supply to the soldiers. Now that summer is coming, I am looking forward to getting some of the cold weather gear. I was just trying to support Ukrainian businesses but I have found my new source for work clothes, probably in brown next time so I don't look too militant as a civilian. As it is, I just wear one piece at a time to troll vatniks.
Slava Ukraïni! Glory to the volunteers!