This pattern is an oversized jumper, I have made it to be large and loose fitting in the body (I’m 38in chest and finished measurement is 44in but the yarn is quite thick)
This is not a multi size pattern as this jumper was knitted for myself and I am not a pattern designer.
Sleeve has squared shaped head, easy to sew in.
Pattern is untested so please let me know if you find errors.
It is written in simple terms.

I used about 2 1/2 balls of Aldi Chunky yarn (roughly 1000g/500m)
Gauge 7 sts x 10 rows = 4x4in worked on 10mm needles

Missing from pattern, increase abbreviations - M1L = Make one left, M1R = Make one right