MATERIAL and WEIGHT : Non-woven fabric. Extremely sturdy and lightweight - less than 1 oz / per bag. QUANTITY and SIZE : 4 pcs in one package. 2 pcs of X-large size (17"X12.4") and 2 pcs of Medium size (14.2"X10.4"). Large size is roomy enough for high-heels, boots, hiking shoes and men shoes up to size of 13. Medium Size fits for women,kids shoes and men shoes up to size 10. DRAWSTRING CLOSURE and WINDOW DESIGN : Easy to pack/open/close and strong enough to carry it anywhere. The strings are thick and long so it can be carried on the shoulder. Transparent window design helps you easier identify which pair of shoes in it and save your time. DUST-PROOF and WATER-RESISTANT : Keep your shoes from moisture and dust in the closet. Or keep dirty/wet shoes away from your clean clothes in the same suitcase. VERSATILE BAGS : Suitable for storing golf shoes, hiking shoes, dance shoes, leather shoes, sneakers, slippers, sandals, boots etc. The bag fits for one pair of high heels. Not only for shoes but also for a wet towel or dirty gym clothes after workout.