Hi my friend has just got a new bag. Yonex Tournament Series 08 Bk/Red 9 Pack Bag it has 2 shoulder straps, 3 main compartments full length zips. 2 side compartments on left and 1 shoe compartment on right it looks like my yonex 7729 tour 9+ Racket Bag, but newer colours why i am posting is it came with a additional strap with a dlink and it has velco on it. what is this for, cant find any information online. cheers