Clothing sizes are far less standard than most shoppers expect. A medium from one brand can be a large from another, which is why a clothing size guide and a tape measure are your best friends when shopping online. This guide explains what the letters mean and how to pick the right size the first time.
What XS to 3XL actually mean
Letter sizes describe a range of body measurements, not an exact fit. In general, S, M and L cover the most common chest sizes for adults, with XS below them and XL, XXL and 3XL above. Because every brand cuts its patterns differently, always compare your own measurements with the chart on the product page.
The three measurements that matter
Use a soft tape measure and keep it snug but not tight.
- Chest: measure around the fullest part of your chest, under your arms.
- Waist: measure around your natural waistline, just above the belly button.
- Hips: measure around the widest part of your hips.
How to read a clothing size guide
Find your measurement in the chart, then read across to the size. If your chest is one size and your waist another, choose the larger size for tops and the size that matches your waist for trousers.
Fit tips for different clothes
Fit depends on the garment. A hoodie or jacket is designed to be worn over layers, so many people size up for a relaxed look. Fitted shirts and dresses are less forgiving, so stay close to your measurements. For jeans and trousers, the waist and inseam both matter, and stretch fabrics allow a little more give.
Fabric changes the fit
Cotton can shrink slightly in the first few washes, while stretch blends keep their shape. If a garment is 100% cotton and you are between sizes, consider sizing up. You can browse our fashion collection to compare fabrics and fits.
Still not sure?
Use this clothing size guide alongside the chart on each product page, check the reviews for comments about sizing, and remember you can return items that do not fit. For a deeper look at how sizing systems vary around the world, see this article on clothing sizes.
Key takeaways
- Take your time and compare a few options before you decide.
- Read the product details and the reviews from other shoppers.
- Check the returns policy so you can change your mind if needed.
- Ask our team through the contact page if you would like help choosing.
Whatever you pick, a little research saves money and avoids regret. Browse the full shop whenever you are ready, and check back on the blog for more practical guides.