This pattern is written in US crochet terms.

Crochet Mesh Sleeves Pattern XS - XL

Materials:
Worsted Weight Yarn
K hook - 6.5mm

Yarn I used:
Red Heart Super Saver Color Block

Measurements: (measured in inches)
Measured from armpit to armpit and from the top of the shoulder to the bottom of the armpit.
XS: W - 13” H - 10”
S: W - 15” H - 10”
M: W - 17” H - 10”
L: W - 19” H - 12”
XL: W - 21” - 12”

Abbreviations:
Ch - Chain
Sc - Single crochet
Dtc - Double Treble crochet
St(s) - Stitch/stitches
Sl St - Slip Stitch

These are made to fit most adults