"Sanna Jumper" - Jumper Knitting Pattern in MillaMia Naturally Soft Cotton

Sanna Jumper – Knitting Pattern Summary

The Sanna Jumper is a charming children's striped sweater designed by Helena Rosen for MillaMia, worked in the brand's Naturally Soft Cotton yarn. This pattern is rated Beginner difficulty, making it an ideal project for knitters who are just starting to explore garment construction. The finished jumper features a classic, clean aesthetic with bold colour-block stripes, and is available in six sizes to fit children aged 1–2 up to 6–7 years.

What Is Being Made

The pattern produces a traditional children's pullover jumper with set-in or straight sleeves, a neat neckline, and a striped body. The garment is sized generously to allow for comfortable wear and ease of movement, with actual chest measurements ranging from 59 cm (23 in) for the smallest size up to 90 cm (35½ in) for the largest. Length to shoulder ranges from 35 cm (13¾ in) to 55 cm (21¾ in), and sleeve lengths range from 19 cm (7½ in) to 31 cm (12¼ in), ensuring a well-proportioned fit across all sizes.

Construction Techniques

The Sanna Jumper is constructed using a bottom-up, worked flat method, meaning the pieces are knitted from the cast-on edge upward in flat rows rather than in the round. The finished pieces are then seamed together, making this a traditionally constructed garment rather than a seamless one. This approach is particularly beginner-friendly, as it breaks the project into manageable flat panels — typically a front, a back, and two sleeves — which are joined at the end.

A key construction note is that circular needles are used on this pattern to accommodate the large stitch counts, particularly on the body sections. However, knitters are instructed to work back and forth rather than in the round, so the circular needle is used purely for its length rather than for circular knitting. This is a helpful technique to be aware of, especially for beginners who may be unfamiliar with using circular needles in a flat context.

Stripe Design

The defining decorative feature of the Sanna Jumper is its stripe pattern, worked using three colours of MillaMia Naturally Soft Cotton. The main colourway specified in the pattern uses:

• French Navy (320) — referred to as colour A
• Off White (311) — referred to as colour B
• Bluebell (322) — referred to as colour C

The pattern also suggests two alternative colourways for knitters who wish to personalise their project. One option pairs Pebble Grey (332) with Pure Grey and Off White (311), while another combines English Rose with Mid Grey and Off White (311). These alternatives allow the same design to take on a completely different character, from nautical and bold to soft and neutral.

Stitches Used

The Sanna Jumper relies on a small, accessible set of knitting stitches, keeping it well within reach of beginner knitters:

• Stocking stitch (stockinette stitch) — the primary stitch used across the body and sleeves, creating a smooth, flat fabric ideal for showcasing the stripe sequence
• Garter stitch — referenced in the abbreviations, likely used for borders or finishing details
• Knit two together (k2tog) — a basic right-leaning decrease used for shaping
• Make one (m1 and m1p) — increase stitches used to add width, particularly in sleeve shaping

The tension (gauge) for the pattern is set at 25 stitches and 34 rows to 10 cm / 4 in over stocking stitch using 3.25 mm (US 3) needles. Achieving this gauge is important for ensuring the jumper knits up to the correct measurements.

Materials