Grumpy Old Man Novelty Birthday Unisex T-shirt, Sweatshirt, Hoodie
Bold Design, Soft Fabric — Your New Everyday Favorite
Some clothes you wear. This one wears confidence for you. DTG-printed on buttery-soft Gildan® blanks — the kind of quality you feel the second you put it on.
📸 Mockup is a tee — but we’ve got you covered. This design ships on 4 styles: T-Shirt, Long Sleeve, Crewneck & Hoodie. Your call, your style, made just for you.
Why This Stands Out
- 🎨 Colors That Stay — Advanced DTG ink bonds with every fiber. Wash it 50 times — still looks fresh.
- 🧵 Skin-Friendly & Soft — OEKO-TEX certified Gildan® fabric. No harsh chemicals, just pure comfort.
- 👕 Put It On, Forget It’s There — That’s how comfortable this is. Taped shoulders, tear-away label, classic fit.
- 🇺🇸 Responsibly Made — US Cotton Trust Protocol. American cotton, sustainably sourced. Quality with a conscience.
Materials & Specs
- Cotton Tees & Long Sleeves: 100% US cotton at 5.3–6 oz — naturally soft and breathable.
- Crewneck & Hoodie: 50/50 blend at 8 oz — pill-resistant fleece with spandex ribbing.
- Note: Sport Grey contains a 90/10 cotton/poly blend for color consistency.
Color & Size Guide
Not sure about sizing? Check our charts below:


- Use the color chart to explore your options.
- Check the size chart for measurements.
- Select, add to cart, and enjoy!
Delivery & Handling
- ✅ Production: 1–3 business days.
- 📦 USA Standard: 3–7 business days.
- ⚡ USA Rush: 3–5 business days.
- 🌍 International: 1–2 weeks.
This is a made-to-order product. Please confirm your size with the chart above. We don’t offer exchanges for wrong sizes, but our team is happy to assist with any concerns.
🛒 Visit fluxtees.com for more styles. Crafted with care, delivered with love.