Sport-Tek
Generate AI mockups on the ST350 PosiCharge Competitor Tee
The performance tee for teams and active listings.
3.8 oz · 100% polyester interlock · athletic straight cut
About the ST350 PosiCharge Competitor Tee
The ST350 is a polyester performance tee, not a cotton blank. It wicks moisture, dries fast, and has a smooth technical surface with a slight sheen instead of a cotton texture.
This is the blank for anything athletic. Team apparel, gym brands, running clubs, and youth sports all expect a performance fabric rather than cotton, and a cotton mockup will look wrong to those buyers.
Why sellers pick it
- Moisture-wicking polyester built for actual activity
- The widest color range in the catalog, including safety neons
- Holds color and shape through heavy washing
- The expected fabric for team and club orders
Best for
Available in 33 colors
Every color generates with a real flat lay reference, not a tinted placeholder.
Atomic Blue
Black
Cardinal
Carolina Blue
Coyote Brown
Deep Orange
Deep Red
Forest Green
Gold
Grey Concrete
Grey Concrete Heather
Iron Grey
Iron Grey Heather
Kelly Green
Lime Shock
Maroon
Neon Orange
Neon Pink
Neon Yellow
Olive Drab Green
Purple
Sand
Silver
Texas Orange
Tropic Blue
True Navy
True Navy Heather
True Red
True Royal
True Royal Heather
Vegas Gold
White
Woodland Brown
Common questions
Can I print the same designs as on a cotton tee?
Mostly, but polyester needs different handling. Sublimation and specific DTG pretreatments work well, while standard cotton DTG settings can struggle. Check with your printer first.
Why does it look shinier than a cotton tee?
That is the polyester interlock. The slight sheen and smooth matte surface are what tell a buyer this is a performance shirt, so the mockups render it accurately rather than hiding it.
Generate your first mockup
10 free credits on signup. Pick the ST350 PosiCharge Competitor Tee, drop in your design, get a photoreal mockup in under a minute.
Try It FreeOther blanks worth a look
Same Drop Studio workflow, different cuts and price points.
