MPP foam mat

The extra padding in the bladder pocket makes a noticeable difference on longer hikes with a heavy pack—my shoulders feel way less strained after a full day out. I wasn’t expecting it to be this firm yet still comfortable against my back, and it stays put without shifting around.

Slides right into the hydration bladder pocket and adds just enough padding against my back on long hikes. The foam hasn't flattened out after a month of weekend use, which I wasn't expecting at this price.

Didn't think a thin foam sheet would make much difference, but sliding it into the bladder pocket of my pack genuinely took the pressure off my shoulders on a long hike. It also doubles as a dry seat when the ground's wet, which I didn't expect to use as often as I do.