look up the pattern name - it is a beautiful orchid flower!

Gauge: 15 stitches in 4in/10cm in stockinette stitch

Yarn and needle size suggestions:
BC GARN Semilla Grosso, (Wool (100%), 50g; 80m (87 yds)) and 6mm (10 US) knitting needles
PREMIER YARNS Puzzle, (Acrylic (100%), 200g; 300m (328 yds)) and 6mm (10 US) knitting needles
RED HEART Dreamy, (Acrylic (100%), 250g; 426m (466 yds)) and 6mm (10 US) knitting needles
RED HEART Soft Essentials, (Acrylic (100%), 141g; 120m (131 yds)) and 6mm (10 US) knitting needles
PHILDAR Phil Frimas, (Cotton (50%), Superwash Wool (50%), 50g; 79m (86 yds)) and 6mm (10 US) knitting needles
GRÜNDL Capri, (Acrylic (100%), 100g; 147m (161 yds)) and 6mm (10 US) knitting needles

You will need: yarn (up 60 grams for the smallest size and up to 180 grams for the largest size), knitting needles to obtain the gauge (please make a gauge swatch!), darning needle to weave in the yarn ends and to sew the back of the hat.
The hat is knit flat.