This item has been discontinued by American Gut Project (UC San Diego).
Item currently not being distributed due to American Gut shifting its efforts to COVID-19 research.
Show your support for microbiome research with these quirky (and really awesome) American Gut t-shirts! These limited quantity shirts are made of 100% polyester. Priority USPS shipping is included with all U.S. orders.
Available sizes are S through XL.
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