Deciso Waistcoat in Adriafil Sierra Andina - Downloadable PDF

Deciso Waistcoat Knitting Pattern in Adriafil Sierra Andina – Free Downloadable PDF

The Deciso Waistcoat is a classic, structured knitted waistcoat designed for adults, available as a free downloadable PDF from Adriafil Yarns. The pattern is worked in Adriafil Sierra Andina yarn and produces a beautifully textured, button-front sleeveless garment featuring a striking travelling lace motif detail. The design is offered in size 46 with instructions also provided for sizes 42 and 44, making it a versatile pattern for a range of wearers.

What Is Being Made

This pattern produces a fitted waistcoat — a sleeveless, button-up knitted garment typically worn over a shirt or blouse. The Deciso Waistcoat features shaped armholes, slanted shoulders, a ribbed border, and a decorative lace motif that travels diagonally across the front panels. It is fastened with six matching buttons, giving it a polished, tailored finish suitable for both casual and smart occasions.

Materials Required

• Yarn: Adriafil Sierra Andina in mélange shade no. 92 — 450 grams required for the main size
• Needles: Knitting needles size 3.5 mm (no. 3½)
• Notions: 6 matching buttons and a tapestry needle for finishing

Adriafil Sierra Andina is a DK weight yarn, well suited to the stitch definition required for both the ribbing and the lace motif detail in this pattern. Its mélange colourway adds natural depth and visual interest to the finished fabric without the need for complex colourwork.

Tension and Gauge

The stated tension is 22 stitches and 30 rows to 10 x 10 cm, worked in knit stitch on 3.5 mm needles. Achieving the correct gauge is important for this pattern, particularly to ensure the lace motif clusters sit correctly across the front panels and that the armhole and shoulder shaping falls at the right measurements.

Stitches and Techniques Used

• Elastic rib: Used for the border rows at the cast-on edge of all pieces, worked over 4 rows to create a neat, stretchy foundation
• K1/P1 rib stitch: Continued after the elastic rib border, worked for approximately 11 cm to create a firm, structured lower body section
• Knit stitch (stocking stitch / plain knit fabric): Forms the main body of the waistcoat once the rib section is complete
• Purl stitch: Used in combination with knit stitch throughout, including as part of the lace motif cluster construction
• Lace motif cluster: A travelling decorative panel worked across the right and left front pieces. Each cluster is 9 stitches wide and includes k2tog (a right-leaning decrease), knit stitches, purl stitches, and a yarn over to create an eyelet. The motif shifts one stitch to the right every two rows over 15 repeats, creating a diagonal travelling lace line across the front
• Yarn over (yo): Used within the lace motif to create decorative eyelets; yarn overs from the previous row are worked in purl on the return row
• K2tog (knit two together): A standard decrease used within the lace motif cluster to maintain stitch count as the yarn over is introduced
• Armhole shaping: Worked by casting off stitches at the ends of rows in a stepped sequence — 4 stitches, then 2 stitches, then 1 stitch six times — to create a smooth, curved armhole
• Shoulder shaping: Achieved by casting off stitches at the shoulder edge every two rows, with slight variations between sizes to ensure a well-fitted slanted shoulder line

Construction and Structure

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