A staple in the industry, 1.5oz Tear-Away is probably the most widely used backing. Easy to tear and versatile (double it up if you need more stabilization) - you won't want to run out of this one.

PLEASE NOTE:  This item ships directly from the vendor.  Because of this, your order may take approximately 2 additional days to process.  Due to the size of this item, it can only be shipped to the 48 contiguous states.