Tommy John Underwear Size Chart
Tommy John underwear size chart. Find your size in their premium boxer briefs, trunks, and briefs.
Size Chart
Data verified Mar 2026 · Official size guide · See an error? Report it
| Size | US | EU | UK | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|
| S | S (28-30) | 3 | S | 71-76 | 86-91 |
| M | M (32-34) | 4 | M | 81-86 | 96-101 |
| L | L (36-38) | 5 | L | 91-97 | 104-109 |
| XL | XL (40-42) | 6 | XL | 102-107 | 112-117 |
| XXL | XXL (44-46) | 7 | XXL | 112-117 | 119-124 |
Tommy John Sizing & Fit Guide
Tommy John underwear fits true to size with a performance fit that stays put. Their Second Skin fabric is stretchy and form-fitting. The Cool Cotton line is more relaxed. Size based on your waist measurement.
View Tommy John's official size guide