Premium Seattle Mariners Major League Baseball Regional Foundation T Shirts Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
Bold Design, Soft Fabric – Your New Everyday Favorite
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 image shows a T-Shirt preview, but this design is ready on T-Shirt, Long Sleeve, Sweatshirt & Hoodie. Select your variant and we’ll craft it to order.
Here’s Why It’s Worth It
- 🎨 Fade-Proof Color – Direct-to-garment printing means your design stays as bold as the day it arrived.
- 🧵 Comfort-Level: 10/10 – Gildan® blanks with OEKO-TEX certified dyes. Soft on skin, gentle on the planet.
- 👕 Comfort First, Always – Taped neck, reinforced shoulders, tear-away tag. Built for all-day wearability.
- 🇺🇸 Sustainably Sourced – US Cotton Trust Protocol. From farm to fabric – responsible at every step.
What It’s Made Of
- T-Shirt & Long Sleeve: Pure cotton (5.3–6 oz) – breathable comfort, durable construction.
- Sweatshirt & Hoodie: 8 oz, 50/50 cotton/poly blend – cozy, durable, resists pilling.
- Sport Grey uses a 90/10 cotton/poly blend for its signature heathered tone.
Choose Your Style
Browse colors and sizes to find your perfect match:


- Find your color in the chart above.
- Match your measurements to the size guide.
- Add to cart and check out securely.
Delivery & Handling
- ✅ 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.
All products are made to order. Please double-check your size before purchasing. No returns or exchanges for incorrect size selections. If there are any issues, feel free to message us for assistance.
🛒 Shop the full catalog at PopFlextees.com. Bold designs, premium comfort.