Tin Ratio Sweatshirt S-5XL — Funny Math Joke Crewneck for Statisticians & Data Geeks
Black crewneck sweatshirt with a clever, mathy twist — white text reads “Tin Ratio” above columns of numbers that wink at anyone who lives for puzzles and constants. The mid-weight 50/50 cotton-poly blend drapes comfortably and holds shape, while ribbed collar and double-needle stitching make this sweatshirt feel lived-in and built to last. Wear it to study sessions, late-night problem sets, or casual hangs where a dry, nerdy joke sparks the best conversations. The simple monochrome design keeps the focus on the clever print, so your fellow math fans will get the reference without shouting for attention.
Product features
- Medium-heavy 50/50 cotton-poly blend (8.0 oz/yd²) for warmth and structure
- Ribbed knit collar and double-needle stitching for long-lasting shape and durability
- Tubular knit construction (no side seams) for a clean look and reduced fabric waste
- OEKO-TEX® certified dyes and ethically grown US cotton; meets safety standards for adults
Care instructions
- Machine wash: cold (max 30C or 90F)
- Non-chlorine: bleach as needed
- Tumble dry: low heat
- Do not dryclean
- Do not iron
Without side seams
Knit in one piece using tubular knit, it reduces fabric waste and makes the garment more attractive
Ribbed knit collar with seam
Ribbed knit makes the collar highly elastic and helps retain its shape
Embroidery
Embroidery decoration method available on either left chest, center chest, or large center chest, as well as right + left wrists
Age restrictions
For adults
Other compliance information
Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements.
Country of origin
Made in Nicaragua
DTF inner neck labels
The inner neck labels and wrist prints are printed using the Direct-to-Film (DTF) print method, while the rest of the prints are done with the Direct-to-Garment (DTG) method.
Do not dryclean; Do not iron; Machine wash: cold (max 30C or 90F); Non-chlorine: bleach as needed; Tumble dry: low heat.
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Any goods purchased can only be returned in accordance with the Terms and Conditions and Returns Policy.
We want to make sure that you are satisfied with your order and we are committed to making things right in case of any issues. We will provide a solution in cases of any defects if you contact us within 30 days of receiving your order.
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Designs © 2026 Charlotte Place Design
and Christopher Fayers