Cosmo Tote Bag in Sirdar Stories DK - Downloadable PDF

Cosmo Tote Bag Crochet Pattern – Sirdar Stories DK (Design No. 10750)

The Cosmo Tote Bag is a stylish, beginner-friendly crochet project from Sirdar, published as Design No. 10750 and available as a downloadable PDF. Part of Sirdar's Poetic Pastels collection inspired by summer city breaks, this eye-catching tote is constructed from granny squares joined together, making it a perfect introduction to motif-based crochet. The finished bag measures approximately 23 x 40 cm (9 x 15¾ inches) excluding straps, and is worked in one size.

What Is Being Made

This pattern produces a crocheted tote bag built from individual granny squares that are joined to form the body of the bag. Granny squares are one of the most iconic and versatile motifs in crochet, traditionally worked in the round from the centre outward, with each round adding new layers of stitches and colour. The Cosmo Tote Bag uses this classic construction method to create a structured, fashionable carry-all that is both practical and on-trend. Straps are also included in the design, completing a fully functional everyday bag.

Yarn and Materials

The pattern calls for Sirdar Stories DK (shade code F137), a cotton-rich double knitting weight yarn sold in 50g balls. Sirdar Stories is specifically formulated to give cool cotton aesthetics in a lighter weight, helping finished makes retain their shape over time. Five colours are used across the project:

• Yarn A – Shade 828 Golden Hour: 1 ball required
• Yarn B – Shade 806 Dreamers: 1 ball required
• Yarn C – Shade 836 Invite: 2 balls required
• Yarn D – Shade 829 Mimosas: 1 ball required
• Yarn E – Shade 827 Glow Sticks: 2 balls required

The multicolour palette reflects the Poetic Pastels summer aesthetic, blending warm golden tones with soft, complementary hues. Ball quantities listed are averages based on achieving the stated tension with the recommended Sirdar yarn.

Hooks Required

Two crochet hooks are needed for this project:

• 4.00mm hook (UK size 8 / USA size F/5) – used for crocheting the granny squares to tension
• 3.50mm hook (UK size 9 / USA size E/4) – used for joining or finishing elements of the bag

Using two hook sizes is a common technique in motif-based crochet projects, allowing the maker to achieve a firm, neat join without distorting the individual squares.

Tension

The stated tension is 1 granny square = 20cm (8 inches) using the 4.00mm hook. Achieving the correct tension is particularly important for this type of bag construction, as the squares must be consistent in size for the join-as-you-go or seamed assembly to lie flat and produce the correct finished dimensions.

Techniques Used

• Granny square construction – working in the round from a central ring, building outward with clusters of treble crochet stitches separated by chain spaces
• Colour changing – multiple yarn colours are introduced across the squares to create the multicolour palette
• Joining squares – individual motifs are joined together to form the body of the tote bag
• Strap construction – handles are worked as part of the overall pattern to complete the tote
• UK crochet terminology – the pattern is written using UK crochet stitch names, which is important to note for crocheters accustomed to US terminology

Stitches Used

• Treble crochet (tr) – UK terminology