Mule
I have the MULE and love it. I have been using it for 3 seasons now. I like having the 100oz balder. I have actually gone through it all (and then some) on hot days/long rides. It has enough room for everything that I carry, but not much more. I carry 2 spare tubes, a mini pump, a multi tool, Leatherman, tire lever set, Slime Scab pack, a small first aid kit, cell phone and keys, and some "power bars" or whatever kind of snacks I have. If I pack my North Face Shell (and it is just a shell- can fold into a Big Mac box or roll into smaller than a paper towel roll cardboard tube)... then things start getting tight. If I throw in my Smart Wool long sleeve med weight shirt, then things start getting uncomfortable
My friend got the "HAWG". Very nice pack- but too big for me. He always has to stop and re-lash stuff down because it tends to move around and settle, throwing off the balance of the pack. But, he can (and does) carry what I carry plus a extra tire. On winter rides though he has plenty of room for a sweatshirt, where I do not. So, for winter rides or long rides, the HAWG would be great, but for what I do, the MULE is just about right. Some times I do wish it was a tad bit larger… But if I pack it strategically, it does 90% of what I need.
BTW… That Osprey Manta 20 looks awesome. I’ll be sure to check that out if the MULE dies on me…