THIS RAISES YOUR BACKPACK SPACE TO 144 SLOTS. BACKPACKS ARE USED TO STORE YOUR LOOT. THESE ARE NOT THE BACKPACKS FROM RUST THAT YOU PUT ON YOUR CHARACTER. THIS BACKPACK IS BY YOUR HOT BAR. YOU WONT LOSE YOUR LOOT IF YOU DIE, YOU WONT LOSE YOUR LOOT AT WIPE. BACKPACKS ONLY WIPE WITH THE JANUARY FRESH START WIPE, AND POSSIBLY WITH THE JUNE REFRESH WIPE. SO TAKE YOUR ITEMS WITH YOU FROM WIPE TO WIPE. THERE ARE MANY SIZES TO FIT EVERYONE. WHATS YOURS??