For classic t-shirts, fulfillment centers offer 100% Cotton for classic solid color shirts, 90/10% Cotton/Polyester blend for 'Heather Grey' and 50/50% or 60/40% Cotton/Polyester blend for other Heather colors.
How do I get better quality on Teespring?
Image resolution: We recommend creating designs with the 300 DPI possible (dots per inch). The minimum DPI the launcher will accept is 120. File Types: PNG files are best but the launcher also accepts other types of image files. File size limit for the launcher is 50 MB.