Berroco Pim Jumper Knitting Pattern

Berroco Pim Knit Sweater

What is Being Made

The Berroco Pim is a classic knit sweater designed by Amy Christoffers, suitable for intermediate-level knitters. This pullover sweater is available in nine sizes, ranging from 37" to 69" bust measurements, with finished lengths between 21" and 24½". The sweater is shown in the 41" size and features a timeless construction method that produces a polished, professional-looking garment.

Construction Techniques

The Pim sweater is constructed using a bottom-up, seamed, and worked-flat method. This traditional approach involves knitting the back and front pieces separately on straight needles before joining them together with seams. The bottom-up construction allows knitters to try on the garment as it progresses and make adjustments to the length as needed. The sweater begins with a garter stitch border at the lower edge, which provides a finished, professional appearance and helps prevent curling of the stockinette stitch fabric.

The pattern includes strategic increases worked at the side seams early in the construction, which shape the sweater body. Armhole shaping is incorporated through marked rows, allowing knitters to clearly identify where armhole decreases should begin. The design recommends 4–6 inches of positive ease for a comfortable, relaxed fit.

Stitches Used

• Garter Stitch (Garter St): Worked by knitting every row. This stitch creates a textured, reversible fabric and is used for the lower border of the sweater, providing structure and preventing edge curl.
• Stockinette Stitch (St st): Worked by knitting on the right side and purling on the wrong side. This is the primary stitch used for the body of the sweater, creating a smooth, classic fabric with a V-shaped pattern on the right side.

Materials and Gauge

The Pim sweater is designed to be knit with Berroco Zinnia yarn in the colorway #7109 Nimbus. Yarn requirements range from 9 balls for the smallest sizes to 17 balls for the largest size, with each ball weighing 50 grams. This yarn choice provides excellent stitch definition and drape for the finished sweater.

The pattern calls for knitting needles in sizes 5 (3.75 mm) and 7 (4.5 mm), with the smaller needles used for the garter stitch borders and ribbing, and the larger needles used for the main stockinette stitch body. A 16-inch circular needle in size 5 (3.75 mm) is recommended for working the neckline. Additional notions include one stitch holder, five removable stitch markers, and one regular stitch marker to help track pattern repeats and construction points.

The recommended gauge is 20 stitches and 28 rows over 4 inches in stockinette stitch on the larger needles. Achieving the correct gauge is essential for obtaining the finished measurements specified in the pattern, and knitters are strongly encouraged to knit a gauge swatch before beginning the project.