[
    {type: "sex", val: "boy"},
    {type: "sex", val: "girl"},
    {type: "age", from: "", to: 6},
    {type: "age", from: 6, to: 18},
    {type: "size", from: "", to: 35},
    {type: "size", from: 36, to: 55}
] (6)

<div class="filter-item" data-sex="girl" data-age="10" data-size="40">

filterObj