Lead Ratio Sweatshirt S-5XL — Math Geek Numeric Sequence Crewneck

This crewneck sweatshirt speaks to quiet curiosity and late-night problem solving. The black, medium-heavy knit feels sturdy and soft — a reliable layer for coding sessions, lab nights, or caffeine-fueled study marathons. The front displays a minimal, data-style design labeled “Lead Ratio” with a sequence of numbers, suggestive of calculations, measurements, or an inside reference only fellow analysts will catch. It sits clean and unapologetic across the chest, so you can wear it to workshops, meetups, or when you want your clothing to hint at the thoughtful work behind it. The tubular knit and ribbed collar hold their shape through frequent wear. Subtle details like tear-away neck labels and reinforced double-needle stitching keep the focus on comfort and longevity. This is for people who appreciate precision, late-night tinkering, and garments that age with stories.

Product features
- Medium-heavy 50/50 cotton-poly blend (8.0 oz/yd²) for warmth and durability
- Tubular knit construction without side seams for a cleaner look and less fabric waste
- Ribbed knit collar and double-needle stitching at seams for shape retention and strength
- OEKO-TEX® certified dyes and ethically grown US cotton (Gildan 18000 build)

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