... . Specialist in HF products Specifications 1. PVC waterproof backpack 2. Material: 500D pvc tarpaulin3. Fine quality, factory ... HF products since 1996. Product Basic Information: 1Namewaterproof backpack /dry pack2Material500D pvc tarpaulin3Size5-120L also can be ... self-inflating series,dry bags. Market include outdoor , climbing , hiking , truck, sail, kayak, boat , fishing ,hunting ,medical ...