T-Shirt Size Guide — UK Sizing in cm

Sizes below are garment chest widths, measured flat, armpit to armpit. For your best fit, measure a T-shirt you already like and match it — bodies vary, favourite shirts don't lie.

Adult sizes (regular fit)

• S — 46cm flat (92cm around) · typically 34–36" chest
• M — 51cm flat (102cm) · 38–40"
• L — 56cm flat (112cm) · 42–44"
• XL — 61cm flat (122cm) · 46–48"
• 2XL — 66cm flat (132cm) · 50–52"

Children's sizes

• 3–4 yrs — 34cm flat · 5–6 yrs — 36cm · 7–8 yrs — 38cm · 9–11 yrs — 41cm · 12–13 yrs — 43cm

Fit notes by product

• Budget and premium tees — true to the chart above
• Heavyweight — boxy cut; if between sizes, take the smaller
• Oversized — intentionally 1–2 sizes bigger than regular; order your usual size for the oversized look
• Performance — athletic cut, slightly slimmer; size up if you prefer room

Group orders

Ordering for a team or event? Collect sizes with a simple rule: "what size is the T-shirt you actually wear, not the size you'd like to be". Mixed-size orders cost nothing extra — the quantity discount applies to the whole order. See bulk ordering.