Lang PTO27-01 Sweater Jumper Knitting Pattern

Lang PTO27-01 Sweater by Lang Yarns

What Is Being Made

The Lang PTO27-01 is a knitted sweater designed in a classic pullover style with trumpet sleeves and a fitted silhouette. This garment is available in four sizes ranging from Small to Extra Large, with a finished bust measurement of 39¼ inches (100 cm) for size S up to 48¾ inches (124 cm) for size XL. The sweater features a total length of 18 inches (46 cm), making it a versatile piece suitable for various occasions and layering options.

Techniques Used

This sweater is constructed using the bottom-up seamed method, meaning the pieces are knitted individually starting from the lower edges and then sewn together. The garment is worked flat on straight needles rather than in the round, allowing for precise shaping and control throughout the construction process. The design incorporates strategic shaping techniques including decreases for the trumpet sleeve silhouette, side shaping increases for a contoured fit, and cap shaping at the sleeve head to create proper sleeve ease and cap height.

Stitches Used

The primary stitch pattern employed in this sweater is Reverse Stockinette Stitch, which creates a textured, purl-bumped fabric on the right side of the garment. This stitch is achieved by purling on right-side rows and knitting on wrong-side rows. The sweater also incorporates Ribbed Stitch (alternating knit and purl stitches in a 1x1 pattern) for structural elements, typically used in cuffs and waistbands to provide elasticity and a finished appearance. The ribbing is worked on US 4 (3.5mm) needles with an even number of stitches.

Sleeve Construction Details

The sleeves feature a distinctive trumpet shape, beginning with a cast-on of 82 to 94 stitches depending on size. The sleeve cap is shaped through strategic decreases worked every alternating 4th and 6th row, reducing the stitch count to 58 to 70 stitches. Once the sleeve reaches 8 inches (20 cm) in length, side shaping begins with increases worked every 12th row, repeated 3 times to create the trumpet silhouette. The sleeve measures 15¾ inches (40 cm) from the cast-on edge before cap shaping commences, with the finished cap height measuring 6 to 6¼ inches (15 to 16 cm).

Materials and Tools

This pattern calls for Lang Yarns Linello, a blend of linen, cotton, and viscose fibers that creates a breathable, lightweight fabric ideal for warm-weather wear. Yardage requirements vary by size: 300 grams (approximately 3 balls) for size S, 400 grams (4 balls) for sizes M and L, and 500 grams (5 balls) for size XL, all in the gold-yellow colorway (1066.0050). Construction requires ADDI knitting needles in size US 4 (3.5mm), which are used throughout the garment for both the ribbed and reverse stockinette stitch sections.

Pattern Overview

• Garment type: Pullover sweater with trumpet sleeves
• Craft: Knitting
• Construction method: Bottom-up, seamed, worked flat
• Primary stitch: Reverse Stockinette Stitch
• Secondary stitch: 1x1 Ribbed Stitch
• Finished bust measurements: 100 cm (S) to 124 cm (XL)
• Finished length: 46 cm
• Yarn: Lang Yarns Linello (linen, cotton, viscose blend)
• Needle size: US 4 (3.5mm)
• Yardage: 300–500 grams depending on size