This is from the manufacturer bisinna/Kitayama Ookami. Thank you for viewing. Details: A detachable panel of 87/48/0.5cm is folded on the back. Drawcords and side compression cords are non-stretch. The entrances to the front and side pockets have elastic cords that can be tightened. The bungee cords and pole loops are also made of rubber. The shoulder straps are 6.5cm wide and about 1cm thick, with a 7.5cm gap between them. The grommet material is magnetic. I am selling this because I no longer have the opportunity to use it.