The Shoulder Starp is Adjustable, Whether Adults or Youth Can Adjust Them to the Lenth that Suits Themselves. Backpack Design Can Free Up Your Hands.This gym sackpack is suitable for a variety of occasions, such as gym, sport, yoga, dance, travel, carry-on, luggage, camping, hiking, training, teamwork, family storage, and more, or as a bag for your trip to school or the supermarket. Add your company name or logo for maximum visibility. Made from polyester material, measuring 18*15 inches, this custom drawstring backpack bag sport gym sackpack. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: Eco-friendly material, reusable, foldable for storage.