Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very comfortable.

These ear plugs are extremely comfortable and stay put in my ears. I can't use the earphones that came with my Ipod--they are so uncomfortable. These Koss plugs fit great and sound great. I am no super audiophile or anything, but the music in my Ipod sounds fantastic through these. I got them for $8.88 but I would still buy them for twice that.