FINE POLYESTER</br>MULTIPURPOSE DAYPACKS??Very suitable for hiking?? climbing?? camping?? travel (easily hold several books ??or ipad?? or a small laptop)</br>ERGONOMIC SLING BACKPACK: Comfortable shoulder strap and back with honeycomb design ?? soft texture and reinforced sewing ?? ventilating excellently and anti - tear; The removable fully adjustable padded shoulder strap with flexible eye-splice makes taking it on and off fast and easy. and the adjustable buckle can change the direction of the shoulder strap according to personal habits ??allow this bag to fit most people with maximum comfort.This bag is perfect for day trips.</br>THOUGHTFUL STRUCTURE PATTERN <br>?? ??Excellent main zippered compartments for books or ipad?? A4 magazine??passport??pen?? notebook?? shirt?? and personal items <br>???? Con