“Run Fast Enough—Red & Blue Tee | Topcoolteez”

Unleash your inner physicist with our “This Shirt is Red if You Run Fast Enough” tee, exclusively from Topcoolteez. Crafted from 100% US-grown heavy cotton (5.3 oz/yd²), this Gildan 5000 classic-fit t-shirt offers unparalleled comfort and durability, perfect for year-round wear. The tear-away label ensures no irritation, making it as great for science enthusiasts as it is for everyday wear.

With its smooth surface, this unisex tee is ideal for vivid and sharp printing, showcasing the humorous Doppler effect design that will surely spark conversations! Whether you’re a dedicated physics student, an inspiring teacher, or simply a science buff, this tee makes a fantastic gift. Elevate your casual wardrobe with a piece that blends style and intellect effortlessly. Choose sustainability and quality without compromising on comfort—only with Topcoolteez.

**Tags**: Doppler effect, physics humor, funny science shirt