Why you'll love it
Smart, comfy tees printed to order
Size & fit
Size & fit
Unisex fit • If between sizes, we suggest sizing up for a relaxed fit.
| Size | Chest width (in) | Body length (in) | Chest (cm) | Length (cm) |
|---|---|---|---|---|
| S | 18 | 28 | 46 | 71 |
| M | 20 | 29 | 51 | 74 |
| L | 22 | 30 | 56 | 76 |
| XL | 24 | 31 | 61 | 79 |
| 2XL | 26 | 32 | 66 | 81 |
| 3XL | 28 | 33 | 71 | 84 |
| 4XL | 30 | 34 | 76 | 86 |
| 5XL | 32 | 35 | 81 | 89 |
How to measure
- Lay a favorite tee flat.
- Measure across the chest 1″ below the armhole (that’s your chest width).
- Measure from the highest shoulder point to the hem (body length).
Measurements are of the garment, not the body. Allow ±1″ / 2.5 cm tolerance.
Description
Indulge in the witty side of chemistry with “I Only Use Sarcasm Periodically.” Periodic‑table tiles spell out the joke, giving science fans a clever nod to elements and dry humor.
Perfect for teachers, students, and lab lovers who appreciate a smart pun and a clean, minimalist design.