What are belt bags? How do you wear belt bags? Where to buy belt bags? Belt bag a fanny pack? I stumbled across waist belt bags and instantly fell in love! I love that these waist bags are cute and functional. You can dress your waist belt bags up and wear to special events, or wear them with your favorite buttonup shirt, casual sneakers and skinny jeans to the movies with friends. These must-have accessories look like fanny packs, which I’ve always adored, but thought they made outfits look more casual. Waist belt bags, or as some might call – hip bags, or trendy fanny packs (I might use multiple names throughout this article bare with me) were all over this season’s runways and is here to stay. Here’s 25 ways to wear waist belt bags (fanny packs)