"Jonas Comfy Bottoms" - Bottoms Knitting Pattern For Babies in MillaMia Naturally Soft Merino

Jonas Comfy Bottoms – Baby Knitting Pattern by MillaMia

The Jonas Comfy Bottoms is a beginner-level knitting pattern from MillaMia, designed to create soft, relaxed, yoga-style baby trousers suitable for ages 0–3 months through 18–24 months. Worked in MillaMia Naturally Soft Merino yarn, these cosy bottoms are an ideal first garment project for knitters who are new to making baby clothing. The pattern is available as a downloadable PDF and forms part of the coordinating Nils and Jonas mix-and-match collection, pairing beautifully with both the Nils and Jonas tops.

What Is Being Made

The pattern produces a pair of comfortable, relaxed-fit baby trousers designed to be worn over a nappy. Actual garment measurements range from 38 cm to 58 cm in width (over nappy) and 30 cm to 44 cm in length, depending on the size knitted. A key design feature is the encased elastic waistband, which keeps the trousers securely in place, along with a decorative bow on the front worked in a contrast colour. The relaxed, slouchy silhouette makes these trousers practical and stylish for everyday baby wear.

Techniques Used

• Worked flat: The pieces are knitted back and forth on straight needles rather than in the round, making this an accessible construction method for beginners.
• Encased elastic waistband: A waist-length piece of elastic is incorporated into the waistband, creating a neat, secure finish that keeps the trousers in place on a baby without the need for buttons or ties.
• Shaping: The pattern uses standard increases and decreases, including k2tog (knit two stitches together), p2tog (purl two stitches together), m1 (make one by picking up the loop before the next stitch and knitting into the back of it), and m1p (the purl version of the same technique), to shape the legs and seat of the trousers.
• Two-colour knitting: The pattern calls for a main colour and a contrast colour, used to create the decorative bow detail on the front.
• Seaming: As a flat-knitted garment, the pieces are sewn together on completion.

Stitches Used

• Stocking stitch (stockinette stitch): The primary stitch used throughout the body of the trousers, creating a smooth, classic fabric on the right side. The tension is set at 25 stitches and 34 rows to a 10 cm / 4 in square over stocking stitch using 3.25 mm needles.
• Garter stitch: Likely used for borders or the waistband fold, providing a firm, non-curling edge.
• Knit and purl combinations: Standard knit (k) and purl (p) stitches form the foundation of the fabric throughout.

Materials Required

The pattern calls for MillaMia Naturally Soft Merino, a sport-weight yarn (50 g / 1¾ oz balls), in two colours:

• Main colour (M): Fawn (160) – requiring 2 (2:2:3:4) balls depending on size.
• Contrast colour (C): Scarlet (140) – one ball, used for the decorative bow.

Two pairs of knitting needles are needed: 3 mm (US 2) and 3.25 mm (US 3) straight needles. A waist-length piece of elastic is also required to finish the waistband.

Suggested Alternative Colourways

MillaMia offers a range of suggested alternative colourway combinations for the Jonas Comfy Bottoms, allowing knitters to personalise the design. These include shades such as Seaside (161)