iPhone Cosy

An iPhone cover in 4 ply merino, knitted in the round, in a textured stitch.

Free online knitting pattern

By , 22 June 2009
Yarn weight:   Skill level:
iPhone Cosy in Colinette Jitterbug Morello Mash

iPhone Cosy in Colinette Jitterbug ‘Morello Mash’

If, like me, you’ve just fallen in love with your new smartphone, you’ll want to protect it. What better way than a waffle-stitch cosy?

Your phone deserves the best, so choose something with a lot of bounce to show-off the stitch pattern. Some left over, hand-painted, superwash merino sock yarn is ideal.

Instructions are given for double pointed needles, but it easily be knit on circular needles using the magic loop technique. The bottom of the cost is joined using the three-needle cast-off (that’s ‘bind-off’ to US English speakers). This technique is a bit fiddly but easy to master, a sewn seam could alternatively be used.

Size information

The finished cosy measures 13.5 x 6 cm (5 1/4 x 2 1/4 in.) unstretched, and stretches to fit an iPhone 4 or other device measuring approx. 11.5 x 6 x 1 cm (4 1/2 x 2 1/5 x 1/2 in.).


Yarn & notions

Needles & equipment

  • 4 x 2 mm double pointed needles
  • 4 x 2.75 mm double pointed needles

If using circular needles, you will need a spare 2.75 mm needle for the three-needle cast-off.


38 sts and 48 rows over 10 cm (4 in.) square in unstretched waffle pattern


iPhone Cosy

Ribbed edging

Using smaller needles, CO 42 sts

Distribute sts across three needles. Join to work in the round, taking care not to twist work.

Next row (rib): [K1, p1] to end

Work 5 rows more in 1 x 1 rib


Switch to larger needles

Waffle pattern

Row 1: Purl
Rows 2-4: [P1, k2] to end

Continue in waffle pattern until work measures 13 cm (5 in.), ending with row 3 of pattern

Next row (decrease): [K2tog, k1] to end (28 sts)

Turn work inside out, distribute sts evenly on 2 needles, 14 sts on each

Work three needle cast-off

Weave in ends and turn right-side out


  1. Susan says:

    So Cute! Thanks so much. This is just what I was looking for for my new phone! Can’t wait to get started.

  2. Dana says:

    this is so cute just bought an iphone so I’ll be making this tonight

  3. Anne Stoddard says:

    This is so easy and looks so complicated ;-). I am also going to use it for the legs of a pair of socks. Will add a “Sweet Tomato Heel” and a stockinette foot. Thank you for sharing.

Add a comment

We want this to be a safe and welcoming space for everyone regardless of gender, heritage, (dis)ability, sexual orientation, body shape/size or other identity. By commenting here you agree to follow our Code of Conduct. Comments are moderated.

Required fields are marked *

Your email will be kept private