geckobrands Lightweight Compression Dry Bags Assorted 3 Pack, Red/Blue/Yellow Large yellow-14"H x 7" dia, medium red-11"H x 9.5"dia, small blue-8.75"H x 7.5"diam The compression material allows the bags to be easily stored in pocket, backpack or handbag To close, align the top two edges, roll down tightly at least three times, secure by turning Buckle towards you and clicking it closed