function wc_format_weight( $weight ) {
	$weight_string = wc_format_localized_decimal( $weight );

	if ( ! empty( $weight_string ) ) {
		$weight_string .= ' ' . get_option( 'woocommerce_weight_unit' );
	} else {
		$weight_string = __( 'N/A', 'woocommerce' );
	}

	return apply_filters( 'woocommerce_format_weight', $weight_string, $weight );
}