Acme
Grumpy Is Good Cap
Grumpy Is Good Cap
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Old Guys Rule Clothing Brand - Grumpy is Good Cap in Grey. One Size
Old Guys Rule Clothing Australia make the best gifts for older men who wear their age with pride. These designs are based on the best-selling Old Guys Rule T Shirts designs. Free Shipping Australia wide on orders $100+
Features
Features
Shipping and Returns
Shipping and Returns
Free Standard Shipping over $100
$9.95 Standard Shipping (2-8 days)
$15 Express Shipping (1-4 days)
All standard orders are dispatched from McLaren Vale, South Australia, within 1-2 business days.
30 Day Easy Returns and Exchanges

Size & Fit Guide: Old Guys Rule
✔ True to size — comfortable, relaxed fit
Relaxed tee fit designed for easy everyday wear over a singlet or on its own. Most customers choose their usual size.
Quick Size Guide
Use your chest measurement to find the best size.
| Size | Fits Chest (cm) |
|---|---|
| M | 102 |
| L | 112 |
| XL | 122 |
| 2XL | 132 |
| 3XL | 142 |
| 4XL | 152 |
| 5XL | 162 |
Need a more accurate fit?
Compare the garment measurements below to a t-shirt you already own and like the fit of.
| Size | Half Chest (cm) | Length (cm) |
|---|---|---|
| M | 51 | 74 |
| L | 56 | 76 |
| XL | 61 | 79 |
| 2XL | 66 | 81 |
| 3XL | 71 | 84 |
| 4XL | 76 | 86 |
| 5XL | 81 | 89 |
How to Measure:
Lay a t-shirt flat and measure from armpit to armpit.
Compare this measurement to the Half Chest measurement above.
If you're between sizes, most customers choose the larger size for a more relaxed fit.
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