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ThreadCraftLab
Premium The Office Dunder Ringer Dunder Mifflin Guarantee Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
Premium The Office Dunder Ringer Dunder Mifflin Guarantee Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
Regular price
$18.94 USD
Regular price
$26.94 USD
Sale price
$18.94 USD
Shipping calculated at checkout.
Quantity
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Custom Printed Gildan® Apparel – Designed for You
The kind of piece that gets compliments on day one and still looks fresh six months later. Printed on Gildan® apparel with fade-resistant DTG ink. Built for your lifestyle.
📸 What you see is a T-Shirt mockup, but don’t stop there – this design comes in 4 different styles: T-Shirt, Long Sleeve, Crewneck Sweatshirt & Hoodie. Choose your favorite and we’ll make it just for you.
Why Everyone’s Grabbing This
- 🎨 No Cheap Print Here – We don’t do vinyl or heat press. Pure DTG – ink in the fabric, color that lasts.
- 🧵 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.
- 🇺🇸 Wear It With Pride – Made with American cotton from the US Cotton Trust Protocol. Quality from the ground up.
Materials & Specs
- Tees & Long Sleeves: 5.3–6 oz, 100% US cotton – light enough for summer, layerable for fall.
- Heavy Blend Fleece: 8 oz, 50/50 cotton/polyester – cozy warmth with pill-resistant durability.
- Sport Grey uses a 90/10 cotton/poly blend for its signature heathered tone.
Color & Size Guide
Browse colors and sizes to find your perfect match:


- Check the color and size chart above.
- Select your style, color, and size.
- Add to cart and proceed to checkout.
Shipping & Delivery
- ✅ Production Time: 1–3 business days.
- 📦 US Delivery: 3–7 business days.
- ⚡ US Rush Option: 3–5 business days.
- 🌍 Rest of World: 1–2 weeks.
Every item is made to order just for you. Please verify your size using the chart above. We can’t accept returns for sizing errors, but we’re always here to help if something isn’t right.
🛒 More to love at ThreadCraftLab.com. Designed for you, printed with pride.
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