This hat design was inspired by my five year old train obsessed son. The picture is a tribute to his favourite train - Thomas the Tank, his tender and his two loyal passenger carriages Annie & Clarabel. I laboured over this pattern for many months but am thrilled with the end result. Now you too can make a fabulous hat for the little man in your life! This hat uses LIGHT worsted weight yarn and a 5.0mm (US H) hook. This hat has very little stretch so I recommend making it equal or LARGER than head circumference. BASIC SKILLS NECESSARY Tapestry crochet technique Changing colours Working from a chart Carrying yarn GAUGE sc worked over 9 stitches and 11 rows measures 2" square using hook 5.0mm (US H) SIZING / FINISHED MEASUREMENTS Baby 6 to 12 months - 18" Toddler 1 to 4 years - 19" Kid 5 to 12 years - 20" Big Kid/Teen + 21"