This shirt features the original Hydrasynth 49 and Hydrasynth Desktop units, generated from the original CAD drawings.
 
The shirt is a high quality 100% ring spun cotton, sustainably grown and harvested in the USA, Gildan Hammer® shirt. 
 
S = chest 34"-36"    86-91cm
M = chest 38"-40" 97-102cm
L = chest 42"-44" 107-112cm
XL = chest 46"-48" 117-122cm
2XL = chest 50"-52" 127-132cm
3XL = chest 54"-56"  137-142cm