What is the definition of GSM when looking for specific fabric?

What is the definition of GSM when looking for specific fabric?   You’ve heard of a 50/50 or a 80/20 t-shirt. 50/50 means 50% cotton and 50% polyester or 80% cotton and 20% polyester, but have you ever seen the gsm listed and wondered what that meant? Simply put; that’s the weight of the fabric.

Cycling Team Reeb’s Custom t-shirts

Ringspun fashion forward t’s used for cycling team. We chose the Dark Heather Charcoal color. Check out our latest client- Cycling team, ‪#‎TeamReeb‬‘s t-shirts for this year’s 24 Hours of Booty event. BTW that’s Beer spelled backwards. We are printing t’s for mens, ladies and youth so families and friends can wear them and be