The p402 Granny Square Beanie: A British Crochet Classic

If you have ever sifted through a charity shop basket in Brighton or a Portobello Road stall, you might have come across a small, floppy beanie stitched together from colourful squares. The product code p402 often appears on a faded sewn-in label, hinting at its origin from a British department store or a mail-order pattern book. This is the granny square beanie, a crochet classic that bridges the craft heritage of the 1940s and the colourful free spirit of the 1970s.

The granny square itself dates back to the early 19th century, when Victorian crocheters worked with silk and fine cotton to create decorative blankets and tablecloths. The motif gained its distinctive ‘granny’ name only in the mid-20th century, a tribute to the women who passed down the technique through generations. By the 1960s and 1970s, the square was repurposed into everything from waistcoats to hats. British pattern books – many produced by Coats or Patons – began featuring the granny square beanie as a quick project for beginner and experienced crocheters alike. The store code p402 likely denotes a specific pattern leaflet from a chain like C&A or Littlewoods, or a product reference from a small haberdashery chain that specialised in made-to-order knitwear.

What Makes a p402 Beanie Distinctive?

The granny square beanie is not a single shape; its construction relies on joining multiple small squares (typically 12 cm or 4 in each) into a crown, then sometimes adding a ribbed brim or a simple single-crochet edge. The p402 variant, judging from collector forums and vintage pattern archives, was usually worked in four or five colours – burnt orange, olive green, cream, brown, and a dash of rust. The wool or acrylic yarn was often DK (double knitting) weight, giving the hat a soft, flexible drape that sits loosely on the head. Unlike tight-fitting beanies of the 1980s, the granny square version has a relaxed, almost beret-like silhouette.

Identifying an Authentic p402

• Label: Look for a small white or cream woven label reading “Store p402” or “p402 – Hand Crochet”. British department stores such as John Lewis or Debenhams sometimes used numeric codes for their own-brand accessories.
• Square count: Most vintage beanies use 5 or 6 squares – one for the crown and four or five around the sides. The p402 pattern often has a hexagonal crown built from seven squares.
• Yarn type: 1970s acrylic feels slightly stiff and shiny, while earlier wool versions are softer and more felted. A faint mothball smell (if not overpowering) can be a sign of genuine age.
• Stitch detail: Genuine granny squares are worked from the centre out in clusters of three double crochet (UK treble) separated by chain stitches. Machine-made fakes exist but usually show uniform tension and a single colour – authentic hand-crochet has subtle tension variations.

A true granny square beanie is never perfectly symmetrical; that handmade wobble is what gives it soul.

Materials and Techniques Behind the Craft

Vintage granny square beanies from Britain were predominantly made from acrylic yarn, a synthetic fibre that became widely available after the Second World War. Acrylic was affordable, colourfast, and easy to wash – ideal for children’s hats and everyday accessories. For a more luxurious feel, some patterns called for a blend of wool and nylon. The p402 instructions (now available only as photocopies in old pattern swaps) typically recommended a 4 mm hook and tension of four squares to 10 cm.

The squares are joined using a slip stitch seam on the wrong side, or a decorative flat braid join that creates a visible ridge between colours. The brim, if present, is worked in rows of single crochet (UK double) with a contrasting colour, often in a striped or ribbed pattern. Some later 1970s versions added a pom-pom made from the same yarn, though the classic p402 pattern seems to have omitted the pompom for a cleaner line.

The Granny Square Beanie in British Fashion History

The beanie as a hat form has deep roots in British working-class culture – the ‘bobble hat’ was a staple of fishermen and schoolboys. The granny square version, however, entered fashion through the late-1960s hippie movement, which celebrated handcraft, bright colours, and individuality. By the mid-1970s, glam rock and folk revival both adopted the granny square beanie. On one hand, you might see it paired with a velvet jacket and platform boots; on the other, it sat atop a head of long, uncombed hair at a folk festival.

The p402 beanie specifically belongs to a category known as ‘store brand handcrafts’ – items made by outworkers (often women in rural areas) and sold through high-street retailers. Unlike mass-produced beanies from factories, each p402 was individually crocheted, making every example slightly different. This cottage-industry model thrived in Britain from the 1940s to the early 1980s, especially in counties like Devon and Yorkshire where knitting and crochet were traditional skills.

How to Care for a Vintage Granny Square Beanie

Because most p402 beanies are made from acrylic or wool blends, they require gentle handling. Here is a practical checklist for keeping your find in good condition:

1. Assess the yarn – Hold a corner over steam (not boiling water). If it softens and regains shape, it is likely wool. If it stiffens or smells chemical, it is acrylic.
2. Hand wash – Use lukewarm water and a mild wool shampoo. Submerge the beanie and press gently – never wring or twist. Rinse in cool water.
3. Blocking – Lay the beanie flat on a towel, reshape the squares (they may have distorted over decades), and pin the edges. Let it air dry away from direct sunlight.
4. Storing – Keep the beanie folded loosely in a cotton bag. Do not hang it, as the weight of the squares can stretch the brim. Add a cedar block or lavender sachet to deter moths.
5. Repairs – A missing square can be re-crocheted using modern DK yarn in a matching colour. Many vintage shops and Etsy sellers stock yarn from the 1970s if you search for ‘retro double knitting’.

Styling a p402 Beanie with a Modern Wardrobe

The beauty of a granny square beanie lies in its versatility. In today’s fashion climate, it can add a subtle or bold retro accent. Consider these pairings:

• With a tailored coat – Choose a beanie in neutral tones (cream, brown, navy) to soften the structure of a wool camel trench or a herringbone blazer.
• With a simple knit dress – A colourful p402 beanie in warm oranges and yellows lifts a plain black or oatmeal dress. Add brown leather boots and a crossbody bag.
• As a collector’s statement – If you have a beanie with a rare colourway (e.g., purple and lime green), wear it with all-white or all-black clothing to let the hat shine.

If you ever find a p402 beanie in a charity shop or online auction, check the label first – it might be a genuine 1970s piece. And if the colours have faded or a square is missing, remember it was made to be worn, not preserved. A little careful repair can bring it back to life.