Cardioid Club T-Shirt — Geometric Heart Graphic Tee

Soft, breathable tee with a quiet, graphic edge — the Cardioid Club shirt feels like the kind of thing you reach for when you want to move through your day with calm confidence. The front design layers a geometric grid with a heart-shaped cardioid line in muted tones, giving the shirt a subtle scientific-romantic vibe that reads equally well at a low-key meetup, a campus lecture, or an evening walk. Lightweight cotton and a relaxed retail fit make it easy to layer under a jacket or wear on its own. It settles comfortably against the skin, the crew neckline keeps the silhouette neat, and the ribbed collar and shoulder taping hold the shape wash after wash. Wear it to nod to curiosity, math-minded playfulness, or to a casual science club hangout.

Product features
– 100% combed ring-spun cotton (color-dependent blends) for a soft, durable hand
– Super lightweight, highly breathable fabric (142–146 g/m²) for all-day comfort
– Ribbed knit collar and shoulder tape to retain shape and prevent stretching
– Retail fit with side seams — neat silhouette that layers well
– Tear-away label (may be replaced with a printed neck label during fulfilment)

Care instructions
– Machine wash: cold (max 30C or 90F)
– Non-chlorine: bleach as needed
– Tumble dry: low heat
– Iron, steam or dry: low heat
– Do not dryclean