The clothing on the character is not appearing. Why?

I've created a script that customizes a player's hair, face, and clothing when they join. The face and hair appear to be working, but the clothing doesn't. Any idea why?

Shirt1 = "rbxassetid://663700538" --boy match
Shirt2 = "rbxassetid://1361051235" --boy match
Shirt3 = "rbxassetid://591071432" --boy match
Shirt4 = "rbxassetid://1117724225" --boy match
Shirt5 = "rbxassetid://1953856314" --boy match
Shirt6 = "rbxassetid://943047235" --boy single
Shirt7 = "rbxassetid://942999747" --blue tunic single

Shirt11 = "rbxassetid://340408952" --magician magnostadt
Shirt12 = "rbxassetid://338904344" --male reim outfit
Shirt13 = "rbxassetid://338904457" --female reim outfit

A list of variables that have the ID's saved.

--Clothes   
    if MaleOutfitChance == 1 then
        Shirt.ShirtTemplate = Shirt1
        Shirt.Parent = player.Character

        Pants.PantsTemplate = Pants1
        Pants.Parent = player.Character
    elseif MaleOutfitChance == 2 then
        Shirt.ShirtTemplate = Shirt2
        Shirt.Parent = player.Character

        Pants.PantsTemplate = Pants2
        Pants.Parent = player.Character
    elseif MaleOutfitChance == 3 then
        Shirt.ShirtTemplate = Shirt3
        Shirt.Parent = player.Character

        Pants.PantsTemplate = Pants3
        Pants.Parent = player.Character

    elseif MaleOutfitChance == 4 then
        Shirt.ShirtTemplate = Shirt4
        Shirt.Parent = player.Character

        Pants.PantsTemplate = Pants4
        Pants.Parent = player.Character
    elseif MaleOutfitChance == 5 then
        Shirt.ShirtTemplate = Shirt5
        Shirt.Parent = player.Character

        Pants.PantsTemplate = Pants5
        Pants.Parent = player.Character
    end

There is a variable named MaleOutfitChance that is a math.random. If that number is a certain one, the player is given certain shirts and pants.

I've also created two variables, "Shirt" and "Pants" that create new instances of shirts and pants respectively. Simply changing the shirt template ID to fit.

https://gyazo.com/cd1d6ce7a13129c06e1beca5cdf6a0c5