Pi Be Rational Men's Signature Tee Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
Unisex T-Shirt / Black / S
$18.94
Sale price
$18.94
Regular price
$26.94
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Pi Be Rational Men's Signature Tee Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
$18.94
Sale price
$18.94
Regular price
$26.94
Bold Design, Soft Fabric — Your New Everyday Favorite
You didn’t come here to blend in. Vibrant DTG print on genuine Gildan® blanks — bold design, premium comfort, the whole package.
📸 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.
The Good Stuff
- 🎨 Colors That Stay — Advanced DTG ink bonds with every fiber. Wash it 50 times — still looks fresh.
- 🧵 Feels Like a Hug — Gildan® fabric with OEKO-TEX certified dyes. Premium comfort from the inside out.
- 👕 Designed for Real Life — Classic silhouette, taped shoulders, itch-free tear-away label. Wear it anywhere.
- 🇺🇸 Good Cotton, Good Vibes — US Cotton Trust Protocol member. Sustainable, premium, American-grown.
Materials & Specs
- Cotton Tees & Long Sleeves: 100% US cotton at 5.3–6 oz — naturally soft and breathable.
- Fleece (Sweatshirt & Hoodie): 8 oz cotton/poly blend — warm, smooth surface, anti-pill finish.
- Fabric note — Sport Grey (90/10 cotton/poly) has a slight poly blend for that classic heather finish.
Your Perfect Match
Use the charts below to pick your ideal color and size:
Available Colors
White
Black
Sand
Sport Grey
Navy
Light Pink
Royal
Pepper
Dark Heather
Forest Green
Light Blue
Gildan 5000 — Unisex T-Shirt
| Size | Length | Bust |
|---|---|---|
| S | 28 in (71.1 cm) | 36 in (91.4 cm) |
| M | 29 in (73.7 cm) | 40 in (101.6 cm) |
| L | 30 in (76.2 cm) | 44 in (111.8 cm) |
| XL | 31 in (78.7 cm) | 48 in (121.9 cm) |
| 2XL | 32 in (81.3 cm) | 52 in (132.1 cm) |
| 3XL | 33 in (83.8 cm) | 56 in (142.2 cm) |
| 4XL | 34 in (86.4 cm) | 60 in (152.4 cm) |
Gildan 18000 — Unisex Sweatshirt
| Size | Length | Bust | Sleeve |
|---|---|---|---|
| S | 27 in (68.6 cm) | 40 in (101.6 cm) | 33.5 in (85.09 cm) |
| M | 28 in (71.1 cm) | 44 in (111.8 cm) | 34.5 in (87.63 cm) |
| L | 29 in (73.7 cm) | 48 in (121.9 cm) | 35.5 in (90.17 cm) |
| XL | 30 in (76.2 cm) | 52 in (132.1 cm) | 36.5 in (92.71 cm) |
| 2XL | 31 in (78.7 cm) | 56 in (142.2 cm) | 37.5 in (95.25 cm) |
| 3XL | 32 in (81.3 cm) | 60 in (152.4 cm) | 38.5 in (97.79 cm) |
| 4XL | 33 in (83.8 cm) | 64 in (162.6 cm) | 39.5 in (100.33 cm) |
Gildan 18500 — Unisex Hoodie
| Size | Length | Bust |
|---|---|---|
| S | 27 in (68.6 cm) | 40 in (101.6 cm) |
| M | 28 in (71.1 cm) | 44 in (111.8 cm) |
| L | 29 in (73.7 cm) | 48 in (121.9 cm) |
| XL | 30 in (76.2 cm) | 52 in (132.1 cm) |
| 2XL | 31 in (78.7 cm) | 56 in (142.2 cm) |
| 3XL | 32 in (81.3 cm) | 60 in (152.4 cm) |
| 4XL | 33 in (83.8 cm) | 64 in (162.6 cm) |
Gildan 2400 — Unisex Long Sleeve Tee
| Size | Length | Bust | Sleeve |
|---|---|---|---|
| S | 27.95 in (71 cm) | 36.22 in (92 cm) | 33.46 in (85 cm) |
| M | 29.13 in (74 cm) | 40.16 in (102 cm) | 35.04 in (89 cm) |
| L | 29.92 in (76 cm) | 44.09 in (112 cm) | 36.61 in (93 cm) |
| XL | 31.1 in (79 cm) | 48.03 in (122 cm) | 38.19 in (97 cm) |
| 2XL | 31.89 in (81 cm) | 51.97 in (132 cm) | 39.37 in (100 cm) |
| 3XL | 33.07 in (84 cm) | 55.91 in (142 cm) | 39.37 in (100 cm) |
| 4XL | 33.86 in (86 cm) | 59.84 in (152 cm) | 38.98 in (99 cm) |
Tap a style above to view its chart. Measured laid flat.
- Use the color chart to explore your options.
- Check the size chart for measurements.
- Select, add to cart, and enjoy!
Shipping & Returns
- ✅ Production: 1–3 business days.
- 📦 USA Standard: 3–7 business days.
- ⚡ USA Rush: 3–5 business days.
- 🌍 International: 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.
🛒 Find your next favorite at shirtcultco.com. Style, comfort, quality — guaranteed.