This hat is worked in Zitron luv & lee; the fire engine red of the yarn caught my attention and gave the hat its name of heatwave. It matches my Heatwave Mittens.
The hat is crocheted entirely in slip stitches in a textured wave pattern. It is worked sideways, with a gathered crown added at the end.
The pattern includes written instructions and an extensive technique section, with step-by-step photo tutorials for
yarn: 80 g of Zitron luv & lee, 100 % Merino extrafine, colorway 315
hook: 5 mm (US size H)
other notions: darning needle for seaming
Thanks to Bethan and Regina for proofreading!
The pattern is available in English (9 pages) and German (9 pages).