Last year I used a foam pad that was made for a tree stand and I put it under the thin cushion seat that came with the tree stand and it wasn't cutting it at all! What do you use to sit comfortably while hunting??
I use the Millenium 100 treestand which has a comfortable seat to begin with. Millenium also sells a cushion that is called a "cool seat", I believe, that is meant to keep cold air from your butt, but also adds cushioning comfort.
I bought a muddy seat to go on my LW assault. $30.00. seems pretty comfy. This will be my first year using a hang-on, I've always used a summit climber. here's the link: Muddy Outdoors Extra Seat for Hang-On Treestands | Bass Pro Shops
What he said. I have the M100 and several other millennium stands so comfort is NEVER an issue. And yes, the "Cool Seat" is designed for cold weather because the mesh seat will allow wind to come through. It works really well.
Ol man tree stands is also another one with a comfy seat. There's is a net seat. Works well for me and I'm a big guy.
I have a Muddy hunter stand I love. I also have 7 other cheap hang on stands I use, and put the muddy seat on. works great.
ThermaSeat is what I use. They make 3 thicknesses. They are comfy. I can cut them down to fit any stand I use. And I never had an animal chew it up.
Most of our stands we try to get with a sling padded seat now. Arm rests are a must too. We also have one Millennium stand that has got to be one of the most comfortable out there.