How do you get the market place id of pants?

So I've tried

tonumber(plr.Character:FindFirstChild('Pants').PantsTemplate)

but it returns nil

example:

local plr = game.Players.LocalPlayer

wait(1)

local template = tonumber(plr.Character.Pants.PantsTemplate)
local pantsproduct = game.MarketplaceService:GetProductInfo(template)
print(pantsproduct.AssetTypeId)

it will print an error because it's a nil value

is there any way to get around this WITHOUT having a separate value and or object??