Bonn Top in Berroco Tillie - Downloadable PDF

Bonn Top in Berroco Tillie – Knitting Pattern by Åsa Buchta

The Bonn Top is a stylish, lightweight knitted top designed by Åsa Buchta and published by Berroco. This intermediate-level pattern is available as a downloadable PDF and is worked primarily in the round using two complementary yarns: Berroco Tillie as the main color and Berroco Aerial as a contrast color accent. The result is a refined, wearable top with a polished finish, suitable for knitters who are comfortable with circular needles, shaping techniques, and managing two yarn weights simultaneously.

What Is Being Made

The Bonn Top is a fitted to semi-fitted pullover-style top designed for a range of sizes. Finished bust measurements span from 34½ inches up to 70 inches, making this pattern highly inclusive across ten sizes. The recommended ease is 2–4 inches of positive ease, giving the garment a relaxed yet structured silhouette. Lengths range from approximately 19½ to 23 inches depending on size. The sample shown in the pattern photography is worked in size 38 inches / 96.5 cm.

Yarns and Materials

Two Berroco yarns are used in this pattern, each contributing a distinct texture and visual quality to the finished top:

• Berroco Tillie (Main Color / MC) – Used in shade #10911 Pamuk. This is a sport weight, hand-dyed yarn sold in 100-gram hanks. Because it is hand-dyed, the pattern recommends alternating skeins every two rounds or rows to prevent uneven color pooling or patterning. Depending on size, the pattern calls for 2 to 4 hanks.
• Berroco Aerial (Contrast Color / CC) – Used in shade #3435 Goldenrod. Aerial is a delicate, lightweight yarn sold in 25-gram balls. The pattern requires 1 to 2 balls depending on size. Its fine weight and luminous quality add a subtle contrast detail to the design.

Both yarns share the same gauge when worked separately, which simplifies the construction and ensures consistent tension throughout the garment.

Needles and Notions

• 32-inch / 80 cm circular needles in sizes US 3 / 3.25 mm and US 5 / 3.75 mm, or size needed to obtain gauge
• 16-inch / 40 cm circular needle in size US 3 / 3.25 mm for smaller circumference sections such as neckline or armholes
• Stitch markers, including 4 removable stitch markers
• Waste yarn for holding stitches

Gauge

The pattern gauge is 23 stitches and 34 rows over 4 inches / 10 cm in Stockinette stitch on the larger needles. This gauge applies equally to both Berroco Tillie and Berroco Aerial when each is worked separately. Gauge is measured after blocking, and the pattern strongly encourages knitters to swatch and check gauge carefully before beginning to ensure accurate finished measurements.

Construction and Techniques

The Bonn Top is worked in the round from the bottom up, beginning with the body. Construction starts by casting on with the smaller circular needle and Berroco Tillie (MC), then joining to work in the round. The lower edge features a simple textured border worked as follows:

• One purl round for a turning ridge or decorative detail
• One knit round
• Repetition of this sequence to build the border

The body transitions to the larger needles for the main fabric, which is worked in Stockinette stitch — the foundational knitting stitch created by