Material Description: Made of upgraded waterproof honeycomb polyester fiber, waterproof, sturdy, and lightweight, it can ensure that the items inside the bag are well protected from water immersion during use during fitness or outdoor rainy weather Unique design: Each WZYWHJ chameleon Pattern backpack has a thick drawstring to prevent the shoulders from getting stuck and help reduce shoulder burden. The drawstring seal allows you to quickly store items and easily insert and remove them. Applicable scenarios: Perfect for gyms, sports, yoga, dance, travel, carry on, luggage, camping, hiking, teamwork, training, you can also decorate it on top, making it an excellent gift for birthdays or holidays for family and friends. Accessory construction: The WZYWHJ chameleon Pattern backpack has a main pocket with a drawstring opening and closing, a small zippered hanging pocket inside, and a zippered patch pocket on the front of the bag. Cleaning method: Hand wash or gentle machine wash, recommended to air dry naturally, do not bleach, low temperature ironing.