Buying a rain jacket online can feel like a guessing game. Should you size up to fit a jumper underneath? Will an oversized cut swallow you? What does “one size” really mean? This PUFFIT size guide answers those questions and helps you find a jacket that fits the way you want it to.

PUFFIT designs outerwear for movement, layering, and real life. Our shapes range from relaxed to intentionally oversized, but the goal is always the same: a jacket that protects you from the rain and looks considered from every angle.

How to Measure Yourself

Before checking the size chart, take a few quick measurements. You will need a soft measuring tape and, ideally, a mirror or a friend to help.

Bust

Wrap the tape around the fullest part of your bust, keeping it level and comfortably loose. Make sure the tape is straight across your back.

Waist

Measure around the narrowest part of your waist, usually just above the belly button. Do not pull the tape tight; you want your natural waist measurement.

Hips

Measure around the fullest part of your hips, keeping the tape level. This is usually about 20cm below your waist.

Shoulder Width

Measure across your upper back from the edge of one shoulder bone to the other. This helps you understand how a jacket will sit across your frame.

Sleeve Length

With your arm slightly bent, measure from the edge of your shoulder down to your wrist bone.

PUFFIT Size Chart

Use this chart as a starting point. Because our styles include different silhouettes, always check the product page for style-specific guidance.

If you fall between sizes, consider how you plan to wear the jacket. For a closer fit over a T-shirt or thin knit, choose your usual size. For heavier layering or a more relaxed look, size up.

Understanding PUFFIT Fits

Relaxed Fit

Relaxed-fit jackets follow the natural line of the body without clinging. They give you room to move and layer comfortably over a light jumper or shirt. If you prefer a clean, everyday silhouette, relaxed fit is the most versatile choice.

Oversized Fit

Oversized jackets are intentionally cut with extra volume through the body, shoulders, and sleeves. This is a deliberate design choice, not a sizing error. The oversized shape works beautifully over thicker layers and creates a modern, streetwear-influenced look.

When choosing an oversized jacket, you usually do not need to size up. The garment is already designed with additional room. Ordering a size larger than usual may make the sleeves and shoulders look disproportionate.

One Size

Some PUFFIT styles are offered in one size. These pieces are designed to fit a wide range of body shapes through dropped shoulders, generous cuts, and adjustable features. One-size styles typically work best for those who wear UK sizes 8 to 14, depending on the desired fit.

How to Choose the Right Size for Layering

Rain jackets are outerwear, which means they need to fit over other clothes. Think about your coldest intended use:

• Spring and autumn: You will likely wear a T-shirt or light knit underneath. Your usual size should work.
• Winter: If you plan to wear a thick jumper or hoodie underneath, consider sizing up, especially in styles with a closer cut.
• Travel and commuting: A jacket that fits over a blazer or workwear layer needs extra room in the shoulders and arms.

A good rule is to leave enough space to cross your arms comfortably in front of you. If the jacket pulls across the back or restricts your shoulders, it is too small.

Rain Jacket Sizing Tips

• Check the length: A longer jacket gives more coverage but can overwhelm a petite frame. A cropped jacket is easier to move in but protects less of the body.
• Look at the shoulders: The shoulder seam should sit at or slightly past your natural shoulder. If it droops halfway down your arm, the jacket is too big.
• Test the sleeves: Sleeves should cover your wrists when your arms are relaxed. When you raise your arms, they should not ride up past your forearms.
• Consider the hem: A drawcord or adjustable hem helps you seal out wind and shape the silhouette.
• Read the product description: PUFFIT product pages include fit notes for each style, including whether it is oversized, true to size, or relaxed.

How PUFFIT Sizes Compare to Other Brands

PUFFIT sizing is designed to align with standard UK womenswear sizing. However, because many of our jackets are intentionally oversized or relaxed, the final fit can feel roomier than a tailored blazer or fitted coat.

If you usually wear a size small in high-street brands, you will typically wear a size small in PUFFIT. If a particular style is described as oversized, you may find that your usual size already gives you the relaxed look you want.

What If I Order the Wrong Size?

Do not worry. PUFFIT offers a straightforward returns and exchanges process. Try the jacket on indoors with the tags attached, check the fit over the kind of layers you plan to wear, and contact us if you need a different size.

When trying on a rain jacket, pay attention to:

• Whether you can raise your arms freely
• Whether the hood stays in place
• Whether the cuffs feel comfortable when fastened
• Whether the hem covers your lower back when you bend forward

Care Tips to Maintain the Fit

How you care for your jacket can affect how it fits over time. Always follow the care label, but as a general guide:

• Wash at 30°C on a gentle cycle.
• Do not use fabric softener, which can affect the waterproof finish.
• Air dry or tumble dry on low if the label allows.
• Store on a hanger to help the jacket keep its shape.

Find Your Fit

The right rain jacket should feel comfortable, allow movement, and leave room for the layers you actually wear. Whether you prefer a close, clean fit or a dramatic oversized silhouette, PUFFIT has a style that works for you.

Browse the PUFFIT rain jacket collection and use the fit notes on each product page to choose your size with confidence.

Frequently Asked Questions