<select name="@variantType.Name" id="@variantType.Name" data-variant="@variantType.Name">
    <option value="">@Model.SelectVariantText.Replace("[name]", variantType.Description.VariantDescription)</option>
    @foreach (var variant in variantType.Attributes.OrderBy(v => v.Name))
    {
        if (variant.IsDefault && variant.InStock)
        {
            <option selected="selected" value="@variant.Value">@variant.Value</option>
        }
        else
        {
            if (!variant.InStock)
            {
                <option value="@variant.Value" disabled="disabled">@variant.Value (Out Of Stock)</option>
            }
            else
            {
                <option value="@variant.Value">@variant.Value</option>
            }
        }
    }
</select>

<option value="@variant.Value" disabled="disabled">@variant.Value (Out Of Stock)</option>