Uses base chain/row instead of chaining to start and elsewhere in pattern

Back and sleeves worked in half double crochet, through front loops, forming chevron pattern

Clarification of sleeve/collar section: after 55 bch stitches for sleeve length (17”) turn and work row 1 of sleeve (55 hdc), then continue on along length of upper back (45 hdc) and onto length of collar extention (16 hdc).