Yea, not hydration systems, just packs. I’ve been a Wingnut packs devote for awhile. I used the huge Adventure Pack on the AZT, where the zipper was destroyed by a squirrel. I got a “2.5” off Evdog and have used the hell out of it. I wanted something a little smaller than 2.5 but larger than my dinky hip pack. The 2.0 seemed right. It’s less “lumbar” than the 2.5, but a more useful shape for 2.5 l Platypus bottles. It holds 4.5 liters worth in the reservoir and main pockets. More minimalist design than the 2.5. The wing pockets are smaller but can still fit a fist. Exactly what I was hoping for. All custom orders, I chose the fabric and reflective seams. I wish I could say the service was great. It took two-plus months to get it and the communication was lacking. Like, don’t state a week turnaround if it’s going to take two months? That PITA aside, the packs are pretty nice.