Our Court Patrol Tennis Cinch Sack makes a great gift for kids or tennis/animal lovers alike.  Heavy-weight sweatshirt material pairs with sturdy cotton roping to form a fun and functional backpack for school, beach or court-side use. Heading to a pro tournament?  Sack makes a great bag to house over-sized autograph tennis ball as well (as shown in photo)  Bag measures 14" x 18".