Material Variety: Made of transparent Polyamide Polyethylene to ensure the safety of stored items, the triple-seal formula acts as double security making no air to pass. Designed to be free of any microbial action, blocks odour, water droplets, mildew, insects/bugs. Textured seal to give a non-slip grip. TRAVEL PUMP INCLUDED - Our vacuum storage bags work with any standard vacuum cleaner but they also come with a handy FREE travel hand pump to make travelling a breeze as you can easily