Summertime Tam Hat Knitting Pattern

Summertime Tam in Plymouth Yarn Cleo

What is Being Made

The Summertime Tam is a classic knitted hat designed to fit most adults. This beginner-friendly project creates a fitted tam with a decorative crown, featuring a finished measurement that accommodates standard adult head sizes. The design includes a ribbed cuff, stockinette stitch body, and a tapered crown that finishes with a charming I-cord detail at the top.

Knitting Techniques Used

This pattern employs several fundamental knitting techniques suitable for beginners. The construction begins with circular knitting, using a 16-inch circular needle to work the hat in the round, which eliminates the need for seaming. The pattern incorporates increases using the make-one (m1) method to expand the stitch count after the ribbed cuff. Decreases are worked using yarn overs combined with slip-slip-knit (ssk) and knit-two-together (k2tog) techniques to create decorative shaping in the crown. The pattern also demonstrates needle transitions, switching from circular needles to double-pointed needles as the stitch count decreases toward the top. Finally, the design finishes with an I-cord, a narrow tube created by working back and forth on a small number of stitches.

Stitches Used

• Knit (k) – The fundamental stitch forming the stockinette stitch body
• Purl (p) – Used in the k2-p2 ribbing for the cuff
• Yarn over (yo) – Creates decorative eyelets in the crown decrease rounds
• Slip-slip-knit (ssk) – A left-leaning decrease used in the crown shaping
• Knit two together (k2tog) – A right-leaning decrease for crown tapering
• Stockinette stitch – The primary fabric created by alternating knit and purl rows in the round
• Ribbing (k2-p2) – The elastic cuff that provides a snug fit

Materials

This project requires Plymouth Yarn Cleo, a lightweight yarn, with two 50-gram balls needed to complete the tam. The pattern is shown in color #165. Construction requires US size 6 circular needles measuring 16 inches in length for the initial rounds, and US size 6 double-pointed needles for the final crown shaping when the stitch count becomes too small for the circular needle. The gauge is 22 stitches over 4 inches in stockinette stitch on US size 6 needles, which is important to achieve the correct finished fit.

Pattern Overview

The Summertime Tam construction follows a logical progression. The hat begins with casting on 84 stitches and joining in the round for circular knitting. A 2-inch k2-p2 ribbed cuff provides elasticity and a finished edge. An increase round expands the stitches to 126, creating the body of the hat. The stockinette stitch body is worked even for 4 inches from the increase round. The crown shaping then begins with a setup round that places markers to divide the work into six equal sections. Alternating decrease and knit rounds create a tapered crown with decorative yarn-over details. As stitches diminish, the work transitions to double-pointed needles for manageability. The final stitches are grafted using an I-cord technique, which is then anchored securely to complete the hat.