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Darcy's Law t-shirt
How fluid moves through rock.
CAD $36.99 launch price
Opening soon. Get an email when the shop opens.
About this design
Darcy's law, set large on the back: flow rate equals permeability times area times pressure difference, over viscosity times length. How fluid moves through rock, first written down in 1856. For engineers, geologists and anyone who has argued about permeability. Printed in light ink for dark garments. Original design, no company names or logos.
True to size. Order the size you normally wear; the size guide below shows the flat measurements.
Details
- Large design printed on the back, small Tidywells mark on the left chest
- Light-ink design for dark garments
- No oil company names or logos
- Garment colours, sizes and fabric are set in the store listing
- The images above are illustrative mockups of the print placement
Size guide
| Size | Chest width (in) | Chest width (cm) | Length (in) | Length (cm) |
|---|---|---|---|---|
| S | 18 | 46 | 28 | 71 |
| M | 20 | 51 | 29 | 74 |
| L | 22 | 56 | 30 | 76 |
| XL | 24 | 61 | 31 | 79 |
| 2XL | 26 | 66 | 32 | 81 |
| 3XL | 28 | 71 | 33 | 84 |
Typical unisex fit. Measurements are approximate and vary slightly by garment maker; the final size guide appears in the store listing. Between sizes, size up for a relaxed fit.
Launch price in Canadian dollars; shipping and tax are added at checkout and the store confirms the final price. Tidywells is not affiliated with any regulator or operator.
