Can't beat those Darn Tough socks, I use the lo cut ones with silk liners.
I like how little moisture they hold, really quality wool in a dense weave.
How is the AGPtek mp3 player working for you? I ran over my Sansa clip player, so I need a new one.
My thickest DT's are my favorites. They are the low ones. I got a light weight model about two inches higher. They are so thin I have to use a liner with them, just so my foot doesn't slip around so much in the shoe. The new ones are an in between weight regular height ankle sock. My feet had been freezing when I was night hiking. They have helped with that.
Speaking of liners, I've heard really good things about the double layer Wright Socks. About the same price point as Darn Tough.
For the money, it's a good player. It has 8G of internal storage. That translates to about 1750 songs, if you don't use the photo and video part of it. I haven't downloaded any podcasts, but it looks like it would be stupid simple.
It has some quirks though. The random play just plays all the track #1's, then the track #2's, etc, etc. I have the 64G micro-sdcard too. It's nowhere near full, so I could use it for extra storage for photos or videos. Also the random feature doesn't work with the micro-sdcard. You have to make a playlist or just listen to whole albums.
I use the FM radio quite a bit. It uses the earbud cord as an antenna. I have found that laying it against my carbon fiber trekking pole improves reception by a ton. {only if the plastic rain cover is removed though}
Battery life is real good. For a normal 2-3 day hike, I an get by without charging. FM does takes more.
The one problem I have is the little pin in the clip will come loose on one end. It takes some skill, a steady hand and a knife point, but it can be stuck back in.
For 30 bucks {if my memory is correct} it's a good deal.