Pi Day Shirt Ha-pi Birthday Born On 314 Tee March 14 Birthday Gift 314 Math Geek Mathematics Lover Costume T-shirt T-Shirt

Original Design – Soft Cotton, Vibrant Print

Soft enough to sleep in. Cool enough to post about. Every piece is DTG-printed on premium Gildan® fabric for colors that pop and comfort that lasts.

📸 The mockup shows a T-Shirt, but this design is available on 4 styles: T-Shirt, Long Sleeve, Sweatshirt & Hoodie. Just pick your style, color, and size – we’ll produce it exactly the way you want.

Why Everyone’s Grabbing This

• 🎨 Looks Fresh, Stays Fresh – High-res DTG printing captures every detail. Machine-wash friendly.
• 🧵 Comfort-Level: 10/10 – Gildan® blanks with OEKO-TEX certified dyes. Soft on skin, gentle on the planet.
• 👕 Fits Like It Should – Classic cut, taped neck & shoulders, tear-away label. Nothing scratchy, nothing awkward.
• 🇺🇸 US Cotton, Real Quality – Proud member of the US Cotton Trust Protocol. Feel good about what you wear.

Fabric Specs

• T-Shirt (5.3 oz) & Long Sleeve (6 oz): 100% cotton – airy, comfortable, all-season wear.
• Sweatshirt & Hoodie: 8 oz, 50/50 cotton/poly blend – cozy, durable, resists pilling.
• Note: Sport Grey contains a 90/10 cotton/poly blend for color consistency.

Find Your Perfect Fit

Reference the charts below before you order:

1. Check the color and size chart above.
2. Select your style, color, and size.
3. Add to cart and proceed to checkout.

Shipping Details

• ✅ 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.

🛒 Explore more designs at NorthStarTees.com – quality you can count on.