Easy to Use： No vacuum or pump required. Simply put clothes in the bag and roll the bag to force air through the one-way air outlet at the bottom of the bag. Extremely easy to use. Extremely Airtight： Fully protect your items. Don’t worry that your clothes will suffer damage from dust, odors,moisture or any unpleasant things. This compression bag are very airtight and strong enough to protect them from these unpleasant things and keep them clean and fresh throughout your travels. Saving Space： Keep your duvet, bed sheets, towels, blankets, pillows and clothes! 80% more space than normal bags! Durable & Reusable: Made from high quality PA + PE that lets you reuse each bag trip after trip without compromising vacuum performance. Perfect for travel and home.