Zipper closurePREMIUM UPGRADED NYLON FABRIC:Smooth Nylon Fabric Protects Your Clothes from Wrinkles and Stains.High Performance Feature Makes Sure this Packing Cubes can Bear High Density Wear and Tear during Traveling.Water-Repellent Feature Nicely Protect Your Clothes from Spill or Leaks.LIGHTWEIGHT&DURABLE:Super Light Nylon Fabric Ensures Storing Your Clothes Neatly in Luggage without Adding Extra Weight.Sturdy&Smooth Double Way Zipper with Extended Cord Ensure Fast&Easy Opening and Closing of the Packing Cubes.Soft and Smooth Mesh Top Panel can not only Protect Your Delicate Clothes from Wrinkes and Odors,but can also Help Identifying Your Clothes via Visible Mesh to Avoid Fumbling Inside Your Entire Luggage.ORGANIZED PACKING and SPACE SAVING:Separating Your Different Clothes with Packing Cubes of Multiple Sizes and Vivid Color Options Available.Time-Saving for Your Traveling,Trip or Outdoors Activities by Avoiding Misplacing Different Items and Make Full Use of the Space in Your Luggage.VERSATILE and MULTI-FUNCTIONAL :Fits Like a Glove into Most Airline Carry-ons,Tote,Weekender,Backpack,Duffel Bag,etc.for Family Breaks,Business Travel,Vacation,Hiking,Camping,RV,Trip,etc.