DSI London’s own men’s chart. Measure your chest at the fullest part with the tape close up under your arms, your waist at belly button height, and your collar around the base of your neck where the collar sits.
| Size | Chest | Waist | Hips | Collar | Sleeve length | Body length |
| Extra Small | 34" (80.5cm) | 26" (66cm) | 34" (87cm) | 14.5" (37cm) | 24" (62.5cm) | 60" (152cm) |
| Small | 36" (91.5cm) | 28" (71cm) | 36" (91cm) | 15" (38cm) | 24" (62.5cm) | 63" (157cm) |
| Medium | 38-40" (96.5-101.5cm) | 30-32" (76-81cm) | 38-40" (96.5-101.5cm) | 16" (41cm) | 24.25" (62.5cm) | 64-67" (163-170cm) |
| Large | 40-42" (101.5-106.5cm) | 32-34" (81-86cm) | 40-42" (101.5-106.5cm) | 17" (43cm) | 25" (63.5cm) | 65-68" (165-173cm) |
| Extra Large | 42-44" (106.5-112cm) | 34-36" (86-91.5cm) | 42-44" (106.5-112cm) | 17.5" (45cm) | 25.5" (65cm) | 66-69" (168-175cm) |
Body length (for shirts built on a brief) is measured from the side of the neck, down between the legs and back up to the same point.