Raglan crochet start top to bottom.
Chain 80, joint DC all around,
Slip stitch, start hdtc-- half double twist crochet. Row3-- 2hdtc, 1hdtc, 1hdtc repeat around, rows hdtc no increase all around.
Repeat until 12 row.
Row13 hdtc start your 4 corner,
Repeat until 12 row for my sized xl
Just reduce in your size.