At adidas, search "S17311" to find the adidas Boys' Estro 15 Soccer Jersey
in seven colors (Maroon pictured) for $11.99
with free shipping
. That's the lowest total price we could find by $8, excluding the mention below. It's available in sizes from XXS to L, although not in all size/color combinations.
Of note, Amazon
offers it with prices starting at
$6.27 with free shipping for Prime members, but in very limited size/color combinations only.