Striped Square Sweater by Yvonne Hugo

Striped Square Sweater

Knitting
March 2026
yarn held together
Worsted
+ Worsted
= Worsted (9 wpi) ?
14 stitches and 19 rows = 4 inches
US 8 - 5.0 mm
US 10 - 6.0 mm
4.0 mm (G)
1435 - 2153 yards (1312 - 1969 m)
XS (S) M (L) XL (2XL)
English Swedish
This pattern is available as a free Ravelry download

Striped Square Sweater is a graphic and generously oversized sweater worked bottom-up using two strands of Plötulopi held together.
The design has a clear oversized character with plenty of ease and a straight, slightly boxy silhouette. The sleeves are worked from the top down, and the defined shoulders are joined together. The neckline is double and is sewn down.
The pattern includes two charts used for all sizes – one for the stripes and one for the square motif – repeated across both the body and the sleeves.
This is a revised version of the pattern, now updated with 6 sizes and improved instructions.
The sweater is part of the Striped Square series, which also includes mittens and socks.

Skill Level:
Intermediate
Suitable for knitters who are comfortable working both in the round and back and forth, as well as colorwork knitting.
One small step uses a crochet hook.
You should feel comfortable following a technical description and managing several steps within the same project.

Size:
XS S M L XL 2XL

Body Measurements:
Bust circumference:
32¼ (34¾) 37 (39¼) 43¼ (47¼)”
82 (88) 94 (100) 110 (120) cm

The sweater is designed with approx. 14½–15¾ ” /37–40 cm of positive ease.
Choose size based on your bust measurement and desired fit.

Sweater Measurements:
Measurements are taken from an unblocked sweater.
Bust circumference:
47¼ (50½) 52¼ (54) 59 (62½)”
120 (128) 133 (137) 150 (159) cm

Total length back (excluding neckline):
20 (21) 21¾ (22½) 23¼ (24½)”
51 (53) 55 (57) 59 (62) cm

Sleeve length:
13¼ (13¾) 13¾ (14¼) 14¼ (13¾)”
34 (35) 35 (36) 36 (35) cm

Needles:
US8 (5 mm) circular needles 16”/40 cm US10 (6 mm) circular needles 16 ”, 24 ”, 32 ” or 40 ”/ 40, 60, 80 or 100 cm
Hook:
US G/4 mm

Gauge:
14 sts and 19 rnds = 4 × 4 inches /10 × 10 cm
in stockinette stitch on US10 (6 mm) needles.

Materials:
Ístex Plötulopi
100% unspun Icelandic wool
100 g = approx. 328 yds (300 m)

Main Color (MC)
XS: approx. 400 g = 4 skeins (approx. 1310 yds / 1200 m)
S: approx. 400 g = 4 skeins (approx. 1310 yds / 1200 m)
M: approx. 400 g = 4 skeins (approx. 1310 yds / 1200 m)
L: approx. 400 g = 4 skeins (approx. 1310 yds / 1200 m)
XL: approx. 600 g = 6 skeins (approx. 1970 yds / 1800 m)
2XL: approx. 600 g = 6 skeins (approx. 1970 yds / 1800 m)

Contrast Color
XS–2XL: approx. 200 g = 2 skeins (approx. 655 yds / 600 m)

If you prefer a longer body or sleeves, or want more positive ease, additional MC yarn may be required.

You can find more of my work as ainavdesign on:
Instagram · Facebook · Ravelry · YouTube

This pattern is shared free of charge as a thank you for the knowledge and generosity that have shaped my knitting life.
It has been carefully written, and you are always warmly welcome to contact me if you have questions.

If you knit one of my patterns, I would love to see it.
Feel free to tag @ainavdesign or use #ainavdesign so I can find your work.
You are also very welcome to share your project here on Ravelry.