Square Root of 169: 13th Birthday 13 Years Old Birthday Party - Math Humor - Birthday Gift Funny Kids Birthday - Nerdy Geeky Gift by SaltacocoteRD
Square Root of 169: 13th Birthday 13 Years Old Birthday Party - Math Humor - Birthday Gift Funny Kids Birthday - Nerdy Geeky Gift by SaltacocoteRD
Exclusive Design – Premium Print on Gildan® Cotton
Imagine scrolling past this and NOT getting it. Yeah, we can’t either. Soft Gildan® cotton, studio-quality print, and a fit that just works. You’re welcome.
📸 Don’t let the mockup fool you – this isn’t just a tee. Get this design on 4 styles: T-Shirt, Long Sleeve, Sweatshirt & Hoodie. You pick, we produce. Simple as that.
Why This Stands Out
- 🎨 Looks Fresh, Stays Fresh – High-res DTG printing captures every detail. Machine-wash friendly.
- 🧵 Quality on Another Level – Gildan® Ultra Cotton & Heavy Blend. Responsibly dyed, ridiculously soft.
- 👕 Your New Daily Driver – Relaxed classic fit with reinforced seams. Tear-away tag = no more neck itch.
- 🇺🇸 Good Cotton, Good Vibes – US Cotton Trust Protocol member. Sustainable, premium, American-grown.
Fabric Breakdown
- T-Shirt & Long Sleeve: Pure cotton (5.3–6 oz) – breathable comfort, durable construction.
- Sweatshirt & Hoodie: 50/50 cotton/polyester (8 oz) – warm, pill-resistant, rib with spandex.
- Sport Grey is 90/10 cotton/poly for a heathered look.
Size & Color Options
Not sure about sizing? Check our charts below:
Available Colors
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 2400 — Unisex Long Sleeve Tee
| Size | Length | Bust | Sleeve |
|---|---|---|---|
| S | 28 in (71 cm) | 36 in (92 cm) | 33.5 in (85 cm) |
| M | 29 in (74 cm) | 40 in (102 cm) | 35 in (89 cm) |
| L | 30 in (76 cm) | 44 in (112 cm) | 36.5 in (93 cm) |
| XL | 31 in (79 cm) | 48 in (122 cm) | 38 in (97 cm) |
| 2XL | 32 in (81 cm) | 52 in (132 cm) | 39.5 in (100 cm) |
| 3XL | 33 in (84 cm) | 56 in (142 cm) | 39.5 in (100 cm) |
| 4XL | 34 in (86 cm) | 60 in (152 cm) | 39 in (99 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) |
- 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.
🛒 Shop the full catalog at HypeDripTees.com. Bold designs, premium comfort.