Charles Tyrwhitt Size Guide
Charles Tyrwhitt is a premium British menswear brand renowned for tailored shirts, suits, and classic clothing built to last. Specialising in smart formal wear and casual essentials, the brand offers multiple fit styles—Classic, Slim, and Extra Slim—to accommodate different body shapes and preferences. Charles Tyrwhitt sizing tends to run on the larger side; if you are in doubt between sizes, choosing a slimmer fit is recommended. With a commitment to quality construction and timeless design, Charles Tyrwhitt serves discerning customers who value smart, well-fitted everyday wear and formal occasion pieces.
How to Measure
- Neck: Measure around the base of your neck where a shirt collar would sit. Keep the tape measure comfortable and not tight. Record the measurement in centimetres or inches.
- Chest: Measure around the fullest part of your chest, keeping the tape measure parallel to the ground and relaxed across your back and front. Do not pull tightly.
- Waist: Measure around your natural waist (typically just above the hip bone), where trousers would normally sit. Keep the tape measure snug but not constricting.
- Sleeve Length: Starting from the centre back of your neck, measure across your shoulder to your wrist bone with your arm slightly bent. This ensures an accurate shirt sleeve length.
Men's Smart Shirts
Smart shirts are available in three fit options: Classic (most generous), Slim (regular fit), and Extra Slim (tightest fit). Choose your size based on neck measurement, then select your preferred fit and sleeve length.
| Neck (inches) | Neck (cm) | Fit Type | Chest up to (inches) | Chest up to (cm) | Waist up to (inches) | Waist up to (cm) | Sleeve Lengths Available |
|---|---|---|---|---|---|---|---|
| 15.5 | 39.5 | Classic | 40 | 102 | 30 | 76 | 32, 33, 34, 35 |
| 16 | 40.5 | Classic | 42 | 107 | 32 | 81 | 32, 33, 34, 35, 36 |
| 16.5 | 42 | Slim | 44 | 112 | 34 | 86 | 32, 33, 34, 35, 36 |
| 17 | 43 | Slim | 46 | 117 | 36 | 91 | 33, 34, 35, 36, 37 |
| 17.5 | 44.5 | Slim | 48 | 122 | 38 | 96 | 34, 35, 36, 37, 38 |
| 18 | 45.5 | Extra Slim | 50 | 127 | 40 | 102 | 35, 36, 37, 38 |
| 19 | 48 | Extra Slim | 54 | 137 | 44 | 112 | 37, 38 |
| 20 | 50.5 | Extra Slim | 58 | 147 | 48 | 122 | 37 |
Men's Casual Shirts
Casual shirts follow the same fit classification and offer flexibility across sizes S to XXXL.
| Size | Neck (inches) | Chest up to (inches) | Chest Garment (inches) | Waist up to (inches) | Waist Garment (inches) | Sleeve Length (inches) |
|---|---|---|---|---|---|---|
| S | 14.5–15 | 38.5 | 42.5 | 32.5 | 41 | 34 |
| M | 15.5 | 41.5 | 45.5 | 35 | 44 | 35 |
| L | 16–16.5 | 45 | 49 | 39.5 | 47 | 36 |
| XL | 17–17.5 | 48.5 | 52 | 42.5 | 50.5 | 37 |
| XXL | 18–18.5 | 51 | 55 | 45.5 | 53.5 | 38 |
| XXXL | 19–20 | 54 | 58.5 | 48 | 56.5 | 38 |
Men's Knitwear
Knitwear includes jumpers and sweaters sized XS through XXXL. Measurements reflect chest width and sleeve length from shoulder seam.
| Size | Sleeve Length (inches) | Chest up to (inches) | Garment Chest (inches) | Sleeve Length (cm) | Chest up to (cm) | Garment Chest (cm) |
|---|---|---|---|---|---|---|
| XS | 33 | 36 | 36 | 84 | 91 | 91 |
| S | 33 | 38.5 | 39 | 84 | 98 | 99 |
| M | 34 | 41.5 | 42 | 86 | 105 | 107 |
| L | 35 | 45 | 45.5 | 89 | 114 | 115 |
| XL | 36 | 48.5 | 48.5 | 91 | 123 | 123 |
| XXL | 37 | 51 | 51.5 | 94 | 130 | 131 |
| XXXL | 38 | 54 | 54.5 | 97 | 137 | 139 |
Men's Casual Outerwear
Casual outerwear such as showerproof field jackets is sized S through XL with regular and extended sleeve length options.
| Size | Your Chest (inches) | Garment Chest (inches) | Waist up to (inches) | Garment Waist (inches) | Regular Sleeve (inches) | Centre Back Length (inches) |
|---|---|---|---|---|---|---|
| S | 36 | 38.5–41 | 32.5 | 39.5 | 25.5 | 28.5 |
| M | 38–40 | 41.5–44 | 35 | 42.5 | 26 | 29 |
| L | 42–44 | 45–47 | 39.5 | 45.5 | 26 | 29.5 |
| XL | 46–48 | 48.5–50.5 | 42.5 | 49 | 26.5 | 30 |
Product-Specific Guidance
Smart Shirts & Formal Wear
Charles Tyrwhitt's smart shirts are the cornerstone of the brand. Available in three distinct fits—Classic for fuller frames, Slim for most body shapes, and Extra Slim for slimmer builds—each shirt is designed for precision tailoring. Sizing is determined primarily by neck measurement; measure where your collar sits and select accordingly. Sleeve length is customisable across multiple options (32" to 38"), so ensure you measure from the centre back of your neck to your wrist bone with your arm slightly bent. The brand's generous sizing means that if you're between two neck sizes, opting for the slimmer fit in the smaller size often provides a better result.
Casual Shirts
Casual shirts follow the same three-fit structure but are sized by standard garment labels (S–XXXL) rather than neck measurement alone. These are ideal for weekend wear and less formal occasions. The fit is proportioned similarly to smart shirts, so if you wear a 16" neck in smart shirts, you'd typically choose a Medium in casual shirts. Garment chest and waist measurements are provided to help you match your body measurements to the appropriate size.
Knitwear & Jumpers
Jumpers and sweaters are offered in sizes XS through XXXL, with measurements based on chest width and shoulder seam sleeve length. Knitwear at Charles Tyrwhitt is designed to layer well under blazers and jackets. Use your chest measurement (the fullest part of your upper body) to select the correct size. Sleeve length is consistent with the size chosen, so there's no separate sleeve selection as with shirts.
Casual Outerwear
Field jackets and showerproof outerwear are available in sizes S to XL. These pieces are designed with a regular fit and include both waist and chest measurements to ensure proper proportioning. Centre back length varies by size to maintain correct proportions across the size range. Sleeve length is measured from shoulder seam to cuff.
Sizing Tips
- Measure twice, order once: Use a soft fabric tape measure and measure in a relaxed, natural posture whilst wearing only thin clothing or underwear. Avoid rigid rulers or measuring tapes that may distort readings.
- Sizing runs large: Charles Tyrwhitt's generous sizing means you should consider choosing the slimmer fit if you're between sizes. This often yields a better result than sizing up.
- Neck is your primary guide: For smart shirts, neck measurement is the key determining factor. Once you know your neck size, you can select from the fit options (Classic, Slim, Extra Slim) and choose your preferred sleeve length.
- Consider your body shape: Classic fit suits fuller frames or those who prefer a roomier silhouette. Slim is suitable for most body shapes. Extra Slim is best for slimmer individuals or those who prefer a snug, tailored appearance.
- Check garment measurements: Always compare your body measurements against both the "your chest/waist" columns (what you should measure) and the "garment chest/waist" columns (what the finished garment will measure) to account for intended ease and fit.
- Sleeve length matters: An ill-fitting sleeve length is immediately noticeable and difficult to alter. Measure from the centre back of your neck across your shoulder to your wrist bone with your arm slightly bent, and select the closest available length.
- Use the 6-month returns window: Charles Tyrwhitt offers 6 months to decide on purchases, so if you're uncertain, ordering multiple sizes for comparison is a practical option.