For an authentic strap the best place is directly from LV, they're about $250, but if your SA orders it as a replacement part they're about $125-140 (somewhere around there)I am looking to purchase an authentic Eva replacement strap for DE.Please reply if you could point me in the right direction.
Or you could check fashionphile or yoogis sometimes they list them there but you'd have to check all the time.
I hope you find one, good luck!
