A heat shrinkable polyester film of the present invention has a transverse
tear defect percentage of about 20% or less as determined in the
following vibration test: the film is rolled into a tubular shape, two of
its opposite edges bonded together, and then the tubular film is placed
around a vertical stack (total weight: 660 g) of three food container
cans each having a diameter of 72 mm and a height of 55 mm; the can stack
with the tubular film placed therearound is passed through a shrink
tunnel to shrink the tubular film onto the can stack; a total of 18 packs
of such can stacks are placed into a cardboard box having a length of 455
mm, a width of 230 mm and a height of 165 mm (6 packs in the length
direction by 3 packs in the width direction), and the cardboard box is
sealed; the cardboard box is vibrated along the width direction for 30
min by a stroke of 50 mm and at a vibration rate of 180
reciprocations/min, after which the transverse tearage of the tubular
film is visually observed; and the transverse tear defect percentage (%)
is determined based on the number of defective packs per 18 packs,
wherein the defective pack is any pack having a tear flaw of 30 mm or
longer along a can periphery. The heat shrinkable polyester film of the
present invention has a good shock resistance during shipping especially
under low temperatures, with a good finish after shrinkage and a
sufficient solvent adhesiveness. Thus, the heat shrinkable polyester film
of the present invention is suitable for use in a multi-packaging label
for packaging, inter alia, a stack of cans.