Sigma = 21M summer pizza shirt It settles easily into everyday

It settles easily into everyday rotation: throw it on with worn denim for city walks

market-watch evenings

garment-dyed tee brings playful nostalgia to everyday wear

while the smaller 21M keeps the message pure: fixed supply

Sigma = 21M summer pizza shirt It settles easily into everydayA heavyweight, garment dyed tee that feels lived in from the first wear. This relaxed fit shirt sports a clean, math inspired front graphic in warm orange on a soft natural ground subtle, clever, and quietly confident. The thick ring spun cotton holds its shape while the garment dye process gives each piece a slightly muted, vintage depth. It sits comfortably for long days of teaching, grading, or thinking through problems at the coffee shop. Sizes