This is a great filet crochet pattern that can be use for shirts or clothes.
This pattern is worked in multiples of 12 plus 2 chains.
Chain-5 at beginning of row counts as first double crochet and chain-2 unless otherwise stated.
Special Stitch Shell: (3 dc, ch 3, 3 dc) as indicated in instructions.
R 1 (RS): Sc in 2nd ch from hook, [ch 4, sk next 3 chs, sc in next ch] across, turn.
R 2: Ch 5 (see Pattern Notes), sc in next ch-4 sp, shell (see Special Stitch) in next ch-4 sp, ch 4, sc in next ch-4 sp] across, ending with ch 2, dc in last st, turn.
R 3: Ch 1, sc in first st, *ch 4, (sc, ch 4, sc) in ch sp of next shell, ch 4**, sc in next ch-4 sp, rep from * across, ending last rep at **, sc in last st, turn.
Rep rows 2 and 3 until you reach your desired length.