I didn't notice when fanny packs went out of style. There was a time when nearly everybody wore one. I pay little attention to whats in style.... a pair of jeans, a T or sweat shirt (depending on weather) and a comfortable pair of shoes is my basic wardrobe.
If I don't plan to go anywhere I might put on a pair of Wally sweatpants. As my accessories have increased (cell phone, smokes, lighter, keys, sunglasses, fingernail clippers) I need some pockets. Sweatpants don't have pockets.
The other day I was pressed into duty outside the home wearing sweatpants. Both hands full of stuff I headed out ..... "I gotta get a fanny pack"

I had a hard time finding one....Wally, KMart, Dollar General, Family Dollar, the Dollar Tree (I shop at the stores that carry the nice stuff).....Could not find a fanny pack.
Finally I found one in a western wear store that had been marked down 3-4 times

I have freed my hands up when wearing sweats and am even less in style than before.