Berroco Altiplano Jumper Knitting Pattern

Berroco Altiplano Knit Sweater

What is Being Made

The Berroco Altiplano is a classic knit sweater designed by Amy Christoffers, suitable for intermediate-level knitters. This garment features cap sleeves and is available in seven sizes ranging from 36" to 60" bust measurements, with finished lengths between 23" and 25½" depending on size selection. The sweater is designed with approximately 4–6" of ease for a comfortable, relaxed fit.

Construction Method and Techniques

The Altiplano is constructed using a bottom-up, seamed, and worked-flat approach. This traditional method means the knitter begins at the lower back edge and works upward in flat pieces on straight needles, rather than working in the round. The garment pieces are later seamed together to create the finished sweater. This construction technique allows for straightforward shaping and is particularly well-suited to intermediate knitters.

Stitches and Stitch Patterns

The sweater primarily features two fundamental stitch patterns that create visual interest and texture:

• Stockinette Stitch (St st) — The classic knit stitch pattern formed by alternating knit and purl rows
• Reverse Stockinette Stitch (Reverse St st) — The inverse of stockinette, created by reversing which side is the public-facing surface, producing a textured, bumpy appearance

The pattern specifies that both stitches are worked with the larger needles at a gauge of 24 stitches and 32 rows equaling 4" in both St st and Reverse St st. The back begins with a garter stitch border (4 knit rows) before transitioning into Reverse Stockinette Stitch for the body.

Shaping Details

The sweater incorporates several shaping techniques typical of fitted garments. Cap sleeves are created by casting on 12 stitches at the beginning of two consecutive rows, adding volume to the shoulder area. Shoulder shaping is achieved through strategic bind-offs at the beginning of rows, reducing stitches gradually. Neck shaping involves binding off the center stitches and working each side separately, with stitches placed on holders for later finishing.

Materials: Yarn and Needles

The Altiplano is designed to be worked in Berroco Mykonos yarn, a 50-gram skein weight. The yardage requirement varies by size, calling for 6 to 10 hanks depending on the finished bust measurement selected. The pattern specifies color #8515 Oceanus, a blue-toned shade. Knitters will need straight needles in sizes 3 (3.25 mm) and 4 (3.50 mm), with the larger size used for the main fabric. Additional notions include 2 stitch holders, 2 stitch markers, and a tapestry needle for seaming and weaving in ends. Gauge checking is emphasized as essential before beginning the project.

Yarn Specifications

Berroco Mykonos is the recommended yarn for this pattern, and substituting alternative yarns may affect the finished garment's appearance, drape, and fit. The pattern emphasizes checking gauge with the specified yarn and needles to ensure proper sizing and fabric characteristics.