A multilayer film comprising: a first layer comprising polyethylene; a second layer comprising a first medium density polyethylene; a barrier layer, wherein the second layer is positioned between the first layer and the barrier layer; a third layer comprising a second medium density polyethylene, wherein the barrier layer is positioned between the second layer and the third layer; and a fourth layer comprising polyethylene, wherein the third layer is positioned between the barrier layer and the fourth layer; wherein the first medium density polyethylene and the second medium density polyethylene each comprise: (a) a first polyethylene fraction having a single peak in a temperature range of 45 °C to 87 °C in an elution profile via improved comonomer composition distribution (iCCD) analysis method, wherein a first polyethylene area fraction is an area in the elution profile beneath the single peak of the first polyethylene fraction between 45 and 87° C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95 °C to 120 °C in the elution profile via iCCD analysis method and wherein a second polyethylene area fraction is an area in the elution profile beneath the single peak of the second polyethylene fraction between 95 °C and 120 °C; wherein the first medium density polyethylene and the second medium density polyethylene each have a density of 0.924 g/cm 3 to 0.936 g/cm 3 and a melt index (I 2) of 0.25 g/10 minutes to 2.0 g/10 minutes, wherein the first polyethylene fraction area comprises at least 40% of the total area of the elution profile, wherein a ratio of the first polyethylene fraction area to the second polyethylene fraction area is 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at 50 percent peak height is less than 5.0 °C. a first layer comprising polyethylene; a second layer comprising a first medium density polyethylene; a barrier layer, wherein the second layer is positioned between the first layer and the barrier layer; a third layer comprising a second medium density polyethylene, wherein the barrier layer is positioned between the second layer and the third layer; and a fourth layer comprising polyethylene, wherein the third layer is positioned between the barrier layer and the fourth layer; wherein the first medium density polyethylene and the second medium density polyethylene each comprise: (a) a first polyethylene fraction having a single peak in a temperature range of 45 °C to 87 °C in an elution profile via improved comonomer composition distribution (iCCD) analysis method, wherein a first polyethylene area fraction is an area in the elution profile beneath the single peak of the first polyethylene fraction between 45 and 87° C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95 °C to 120 °C in the elution profile via iCCD analysis method and wherein a second polyethylene area fraction is an area in the elution profile beneath the single peak of the second polyethylene fraction between 95 °C and 120 °C; wherein the first medium density polyethylene and the second medium density polyethylene each have a density of 0.924 g/cm 3 to 0.936 g/cm 3 and a melt index (I 2) of 0.25 g/10 minutes to 2.0 g/10 minutes, wherein the first polyethylene fraction area comprises at least 40% of the total area of the elution profile, wherein a ratio of the first polyethylene fraction area to the second polyethylene fraction area is 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at 50 percent peak height is less than 5.0 °C. (a) a first polyethylene fraction having a single peak in a temperature range of 45 °C to 87 °C in an elution profile via improved comonomer composition distribution (iCCD) analysis method, wherein a first polyethylene area fraction is an area in the elution profile beneath the single peak of the first polyethylene fraction between 45 and 87° C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95 °C to 120 °C in the elution profile via iCCD analysis method and wherein a second polyethylene area fraction is an area in the elution profile beneath the single peak of the second polyethylene fraction between 95 °C and 120 °C; wherein the first medium density polyethylene and the second medium density polyethylene each have a density of 0.924 g/cm 3 to 0.936 g/cm 3 and a melt index (I 2) of 0.25 g/10 minutes to 2.0 g/10 minutes, wherein the first polyethylene fraction area comprises at least 40% of the total area of the elution profile, wherein a ratio of the first polyethylene fraction area to the second polyethylene fraction area is 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at 50 percent peak height is less than 5.0 °C.