Proof of Concept Crewneck (S-3XL) sarcastic apparel for travel days that stretch

for travel days that stretch into dinner

A softly structured silhouette with a classic kiss-lock frame and subtle vintage character

Community spaces

5 50 26 5XL 30

Embroidered detailing adds texture without excess—meant to be noticed only up close

Proof of Concept Crewneck (S-3XL) sarcastic apparel for travel days that stretchAn idea, worn daily. This crewneck is for people who build quietly. Who test, try, revise, and keep showing up. PROOF OF CONCEPT isnt a slogan here. Its a reminder that ideas become real through consistency, care, and work. Soft and midweight, this sweatshirt settles in like something you already trust. The minimalist front keeps the focus clear, while a small amber emblem on the back adds warmth and intention without distraction. Its the kind of