BIO Cross Bottom Bag 95x160mm 50pcs. When you think of a slightly more luxurious item, you naturally think of the BIO cross bottom bag to properly pack and transport your product. With this stand-up bag you pack many different types of products, it is excellent for transporting products with a slightly higher top. The surge bag I also a made of biologically compostable film, so you are also doing a good thing for the environment.