Both long and short sleeved versions. Called “Stay Cool” in Simply Knitting Magazine.

Sizes: To fit chest / finished measurements
32/34” (81/86cm) / 36.75” (93cm)
36/38” (91/97cm) / 41” (104cm)
40/42” (102/107cm) / 44.5” (113cm)
44/46” (112/117cm) / 48.75” (124cm)
48/50” (122/127cm) / 52.5” (133cm)
52/54” (132/137cm) / 56.75” (144cm)

Yarn Requirements: DK weight, 50g balls
Long-sleeved cardigan: 12 (14, 15, 17, 19, 20) balls
Short-sleeved cardigan: 11 (12, 14, 15, 18, 19) balls

Also Needed:
1 button

Sirdar website link: Flirt DK 9273