Paul Smith

Paul Smith Size Guide

Paul Smith is a quintessentially British luxury fashion house founded by Sir Paul Smith in 1970 in Nottingham, England. Internationally celebrated for its fusion of traditional British tailoring with contemporary twists, playful details and the iconic multicoloured stripe, the brand offers menswear, womenswear, children’s clothing, footwear and accessories. Paul Smith garments are crafted with a classic British cut, featuring quality materials and meticulous attention to detail. Sizing generally follows standard UK conventions, though fits can vary between collections — the mainline Paul Smith collection tends towards slim, modern tailoring, whilst the PS Paul Smith diffusion line often features slightly more relaxed, casual silhouettes. Whether you’re investing in a signature tailored jacket, a striped shirt, a pair of well-cut jeans or casual knitwear, this comprehensive size guide will help you find the perfect fit across all Paul Smith ranges.

How to Measure

To find your ideal Paul Smith size, take your body measurements wearing lightweight clothing. Use a flexible tape measure and keep it comfortably snug — not too tight, not too loose. Stand naturally and breathe normally throughout.

1. Chest: Measure around the fullest part of your chest, keeping the tape measure horizontal and comfortably loose under your arms. Do not puff out your chest — breathe normally and stand naturally.
2. Waist: Measure around your natural waistline, which is typically the narrowest part of your torso, approximately one inch above your belly button. Keep the tape comfortably loose.
3. Hips: Measure around the fullest part of your hips and bottom, keeping the tape measure parallel to the floor. Stand with your feet together for an accurate measurement.
4. Collar (shirts): Measure around your neck where the collar would sit, allowing enough room to slip one finger between the tape and your neck comfortably.
5. Inside Leg: For trousers and jeans, measure from the top of your inner thigh (crotch seam) down to where you want the hem to sit — typically at your ankle bone.
6. Foot Length: For footwear, stand on a piece of paper and mark the back of your heel and the tip of your longest toe. Measure the distance between these two points in centimetres.

Men’s Clothing Size Guide

Paul Smith menswear follows standard UK/US sizing. The mainline collection typically offers a slimmer, tailored fit, whilst PS Paul Smith provides a slightly more contemporary, relaxed cut. If you are between sizes or prefer a looser fit, consider sizing up.

Men’s Blazers & Suits Size Guide

Paul Smith tailoring is renowned for its sharp British silhouette. Blazers and suits use a chest-based sizing system. For the best fit, match your chest measurement to the appropriate size below.

Women’s Clothing Size Guide

Paul Smith womenswear uses Italian sizing as its primary label system, which corresponds to standard international sizes as shown below. The brand offers a refined, feminine silhouette with a modern edge. If you are between sizes, consider the garment’s intended fit — tailored pieces may benefit from sizing up, whilst relaxed styles can be taken in your usual size.

Men’s Footwear Size Guide

Paul Smith men’s shoes are crafted with a sleek, slightly narrow last that is true to standard UK sizing. If you have wider feet, you may wish to consider going up half a size.

Women’s Footwear Size Guide

Paul Smith women’s footwear follows standard UK sizing. The brand’s shoes tend to be true to size with a refined, elegant fit.

Boys’ Clothing Size Guide

Girls’ Clothing Size Guide

Baby & Toddler Size Guide (0–3 Years)

Product-Specific Guidance

Paul Smith Shirts

Paul Smith dress shirts are renowned for their classic British tailoring with contemporary details such as contrast cuffs, patterned linings and the signature multicoloured stripe on the inner cuff placket. Shirts are sized primarily by collar measurement (14.5” to 17.5”), which corresponds to the letter sizes XS through XXXL. For a standard fit, match your neck measurement to the collar size. If you prefer a slimmer silhouette, the mainline collection often features a more tapered body than the PS Paul Smith shirts. Always check the specific product description for “slim fit” or “classic fit” designations, as this affects the body width significantly even at the same collar size.

Paul Smith T-Shirts & Polos

Paul Smith T-shirts and polo shirts are sized using the standard letter system (XS–XXXL). These tend to run true to size with a slightly refined, modern fit — not overly slim but not boxy. The PS Paul Smith T-shirt range offers a slightly more relaxed, everyday fit compared to the mainline. If you prefer a looser drape, particularly through the body, consider going up one size.

Paul Smith Jeans & Trousers

Paul Smith trousers and jeans are typically sized by waist measurement in inches (28”–40”), corresponding to the letter sizes shown in the men’s clothing chart above. Inside leg lengths are generally offered in a standard 32” inseam, though some styles may vary. The brand’s jeans tend towards a slim, tapered leg unless otherwise specified. If you prefer a comfortable fit through the thigh, it can be worth sizing up one in the waist. Women’s trousers follow the Italian sizing system shown in the women’s clothing chart.

Paul Smith Outerwear & Coats

Jackets, overcoats and outerwear follow the standard letter sizing for menswear and Italian sizing for womenswear. Bear in mind that outerwear is generally designed to accommodate layering, so most customers find their regular size provides sufficient room. However, if you plan to wear particularly bulky knitwear underneath a fitted coat, sizing up may be advisable.

Paul Smith Knitwear & Sweaters

Paul Smith knitwear is crafted from premium materials including merino wool, cotton and cashmere blends. These pieces are designed with a clean, modern silhouette. Sizing is true to the standard letter chart. Knitwear in natural fibres may relax slightly with wear, so it is best to choose your exact measured size rather than sizing up.

Paul Smith Footwear

Paul Smith shoes — including trainers, leather shoes and boots — are built on refined lasts that tend to be true to standard UK sizing. Leather shoes may feel slightly snug when new but will soften and mould to your foot over time. Trainers generally offer a more generous fit from the outset. If you are between half sizes, size up for leather footwear and choose your lower size for trainers. Always measure your foot length in the afternoon, as feet swell slightly throughout the day.

Sizing Tips

• Mainline vs. PS Paul Smith: The mainline Paul Smith collection offers a slimmer, more tailored cut, whilst PS Paul Smith provides a contemporary yet slightly more relaxed fit. If you own pieces from both lines, you may find you wear different sizes between them.
• Italian sizing for women: Paul Smith womenswear uses Italian sizing on the label. An Italian 42 corresponds to a UK 10 or US 6. Always cross-reference with the conversion chart above to avoid confusion.
• Shirt collar sizing: When measuring for Paul Smith shirts, ensure you can comfortably fit one finger between the tape measure and your neck. A collar that is too tight will be uncomfortable and cause the fabric to pull when buttoned.
• Check product descriptions carefully: Many Paul Smith garments indicate “slim fit,” “tailored fit” or “regular fit” in the product name or description. A slim-fit medium will be noticeably more fitted than a regular-fit medium, so always factor this into your decision.
• Leather footwear break-in: Paul Smith leather shoes and boots are crafted from high-quality leather that will soften and stretch slightly with wear. If a pair feels marginally snug when new, allow a short break-in period before deciding they are too small. Consider using shoe trees to maintain shape.
• Children’s sizing is height-based: Paul Smith kids’ clothing is sized by age (2–16), but the most reliable way to choose the correct size is to match your child’s height in centimetres to the chart above, as children of the same age can vary significantly in build.
• Measure regularly: Body measurements can change over time. It is worth re-measuring yourself at least once a season to ensure you are selecting the most accurate size, particularly when investing in premium Paul Smith tailoring.
• When in doubt, size up: Paul Smith garments are designed with a refined, close-to-the-body aesthetic. If your measurements fall between two sizes, opting for the larger size will generally provide a more comfortable fit, especially for structured pieces like blazers and coats.