A new knitting tradition for the darkest days of winter. One mystery sweater. Two yarn qualities. Four winter chapters. Thousands of knitters casting on together.

Welcome to the first Winter Mystery Knit Along with Sisu. This time you’ll get two knitting patterns.

SCHEDULE
Chapter one: Sunday, January 1
Chapter two: Sunday, January 10
Chapter three: Sunday, January 17
Full pattern: Sunday, January 24

After purchase, you’ll receive an information letter about the Winter Mystery. You will receive the first chapter for the pattern in both Léttlopi and Álafoss Lopi at once, January 1. The rest will follow on the dates listes above. By week four, you’ll have everything you need to complete the sweater.

Knitting kits
Sisu has premade 5 different colorways in Léttlopi and in Álafoss Lopi for you. Choose your yarn quality and then your favorite color combination. Click here for kits.

Yarn quality choice one
Léttlopi by Istex (50 g = 100 m)

Sizes
XS (S) M (L) XL (2XL) 3XL (4XL) 5XL

Bust circumference
80 (89) 98 (107) 116 (127) 138 (147) 158 cm

Positive ease
+ 5 to 10 cm

Length (measured mid back)
61 (63) 65 (67) 69 (71) 74 (76) 77 cm

Gauge (10 x 10 cm)
18 sts x 24 rows on needle size 4.5 mm (US7)

Circular needles
3.5 mm (US4) 40 cm and 80/100 cm
4.5 mm (US7) 40 cm and 80/100 cm

Double pointed needles
3.5 mm (US4)
4.5 mm (US7)

Yarn
Léttlopi by Istex (50 g = 100 m)
A 9420 B 1418 C 1700 D 0054

Colors
A Main color
B Pattern color one
C Pattern color two
D Pattern color three

Yarn quality choice two
Álafoss Lopi by Istex (100 g = 100 m)

Sizes
XS (S) M (L) XL (2XL) 3XL (4XL) 5XL

Bust circumference
94 (100) 106 (111) 120 (126) 135 (145) 154 cm

Positive ease
+ 5 to 11 cm

Length (measured mid back)
63 (64) 65 (67) 69 (71.5) 74 (76) 78 cm

Gauge (10 x 10 cm)
13 sts x 18 rows on needle size 6 mm (US10)

Circular needles
4.5 mm (US7) 40 cm and 80/100 cm
6 mm (US10) 40 cm and 80/100 cm

Double pointed needles
4.5 mm (US7)
6 mm (US10)

Yarn
Álafoss Lopi by Istex (100 g = 100 m)
A 0709 B 9972 C 0008 D 0054

Colors
A Main color
B Pattern color one
C Pattern color two
D Pattern color three

Facebook Groups
Léttlopi knitters: click here
Álafoss Lopi knitters: click here

Ravelry Threads
Léttlopi knitters: click here
Álafoss Lopi knitters: click here

In the autumn of 2026, over 1.750 knitters joined us from every corner of the world. Are you with us this winter?

Until we start small hints about the pattern and the inspiration behind it will be released at @sisuknitwear. Follow along.

Hashtag: #sisuwkal27

Winter Mystery by Christina Einvik (2027)
© All rights reserved