Women’s Cycling Jersey Sizing: How to Measure Your Bust and Choose a Size

Choosing a women’s cycling jersey online is easier when you start with a measurement rather than the size you usually buy on the high street. A familiar letter on the label can mean something quite different across brands and cuts.

For Granny Gear’s women’s sizing, measure around the fullest part of your bust, keeping the tape level and snug without pulling it tight. Compare that measurement with the women’s chart on the exact product, then check comfort through the shoulders, waist and hem in a riding position.

This guide focuses on measuring and choosing a women’s size. For the broader differences between cuts, see our club fit vs race fit guide.

How to measure your bust for a cycling jersey

1. Use a flexible measuring tape

Stand comfortably and breathe normally. Wear the underwear you expect to wear while cycling so you are measuring the shape the jersey will need to accommodate.

2. Measure the fullest part of your bust

Pass the tape around your back and across the fullest part of your bust. Keep it horizontal all the way around; a mirror or another person can help you check that it has not slipped down at the back.

The tape should touch you without compressing your body. Do not hold your breath or pull it tight to get a smaller number. Repeat the measurement once to check that you get a consistent result.

3. Check the units and the correct chart

Write down the measurement with its units. If you measured in centimetres, use the centimetre column; if you measured in inches, use the inch column.

On Granny Gear product pages with both options, choose the women’s bust chart. The men’s chest chart is a separate guide, so the same size label does not necessarily represent the same measurement.

Why your usual UK clothing size is only a starting point

A UK dress size does not tell you exactly how a cycling jersey will sit on your body. A size from another jersey brand is not a guaranteed match either. Use the current product chart rather than trying to translate a dress size into S, M or XL.

It is also useful to know whether the guide describes body measurements or the dimensions of the garment itself. Those are different things. Follow the instructions alongside the chart and ask the retailer if the distinction is unclear.

What if your bust measurement puts you between sizes?

Use the advice for the particular jersey first. Granny Gear’s Retro San Pellegrino jersey has separate men’s and women’s guides and a relaxed club fit. Its current guidance suggests considering the larger size when you are between sizes and prefer a looser fit.

That is not a rule to size up automatically. A jersey that accommodates your bust but is excessively loose elsewhere may still feel awkward. If your measurements or preferred fit leave you unsure, contact the retailer before ordering rather than guessing several sizes above the recommendation.

Check more than the zip when you try it on

Being able to fasten a jersey is only one part of choosing a comfortable size. Try it with the underwear and any base layer you intend to use, then check the following.

• Bust: the front should not feel painfully compressed or show pronounced pulling around the zip.
• Shoulders: reach forwards and check that the sleeves and upper back allow comfortable movement.
• Waist and hem: notice whether the jersey repeatedly rides upwards or feels restrictive around your middle.
• Length: check coverage when leaning forwards rather than judging it only while standing upright.

Cycling UK’s advice on choosing clothing in larger sizes also emphasises checking jersey length and trying clothing in your riding position. A mirror check alone can miss an uncomfortable fit on the bike.

Should you choose a women’s or men’s jersey?

Choose the version whose measurements and shape work for you. A women’s label does not guarantee that every rider will prefer that cut, and a men’s option should not be selected simply by copying the same size letter.

Where a design offers both, compare the relevant charts and ask about any fit details that matter to you. Your proportions and comfort are more useful than assumptions about what you ought to wear.

A quick checklist before ordering

1. Take and record your bust measurement.
2. Select the women’s chart on the product you want.
3. Check units and read the product’s advice for between sizes.
4. Consider the underwear and layers you plan to wear.
5. Check the retailer’s current return and exchange conditions before trying the jersey.

You can enjoy colourful kit without choosing a racing silhouette. Explore our women’s cycling jerseys, find a design you like and use its product size guide before ordering. The aim is a jersey you can enjoy riding in, rather than a label you have to squeeze into.