Pi Digits Crewneck Sweatshirt S-5XL — Pi Symbol and 3.14159 Sequence

A quiet, clever crewneck for people who love numbers and comfortable layers. The black sweatshirt wears like a soft evening—calm, matte, and a touch academic. White, stencil-like text down the front shows the Pi symbol, the word “Pi,” and a cascade of digits that trail off into ellipses. It reads like a small, wearable math joke and pairs easily with jeans, leggings, or a favorite cozy chair.

Wear it while grading problem sets, marking Pi Day on the calendar, or settling in for a late-night coding session. The roomy, classic fit gives you space to move and layer without feeling bulky. Subtle details—clean ribbed collar, reinforced double-needle seams, and a tear-away neck label—keep the focus on comfort and durability. Whether you’re gifting to a fellow math nerd or adding a relaxed staple to your own rotation, this crewneck feels like two parts brain and one part comfort.

Materials and care: medium-heavy 50/50 cotton-poly blend (heather sport mixes vary), embroidered placement options available if you prefer stitched accents, and DTF/DTG printed neck labels. Ethically sourced US cotton and OEKO-TEX® certified dyes mean you can wear it with a little extra confidence.

Product features
- Medium-heavy 50/50 cotton-poly fabric (8.0 oz/yd²) for warmth and durability
- Classic fit with ribbed knit collar and double-needle stitched seams
- Tubular knit (no side seams) for cleaner look and less waste
- OEKO-TEX® certified dyes and ethically grown US cotton

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