A fastening belt for a recyclable, plastic, beverage bottle including: a length of flexible material affixed around a circumference of the bottle and positioned on a lower part of a body of the bottle; in a first partially compacted the material is disposed in a crease of a fold between the first and the second segments of the bottle; and in a second, compacted state, the material is configured to be passed over the neck of the bottle, thereby securing the first and second segments of the bottle in the compacted state folded over the third segment.