Sport-Tek ST640 RacerMesh polo

Shown: True Royal — tap any color below to see it here

Sport-Tek · Style ST640 · PosiCharge® RacerMesh®

Sport-Tek ST640 Custom Polos

The coolest-wearing polo we sell, literally. Ultra-fine flat back RacerMesh breathes better than anything else in the case, which is why outdoor crews in South Florida live in it.

  • 3.8 oz, 100% polyester flat back mesh - maximum breathability
  • PosiCharge® locks in color and keeps logos crisp wash after wash
  • Moisture-wicking · flat knit collar · taped neck · dyed-to-match buttons
  • 24-piece minimum · no setup fees · mix colors and sizes
1,300+decorated last year
In-houseembroidery and printing
7–10 daystypical turnaround
Get Same-Day Pricing

Real numbers back the same business day — not a range.

Pick your colors

Tap a color to see the actual blank up top — your picks ride along invisibly when you send the quote form.

Colors (21) No colors picked yet

Garment photos are supplier stock images of the actual blank. Matching ladies and youth RacerMesh styles run in the same colors - ask and we will quote the mix together.

Get pricing on your ST640 order

Tell us the quantity and where the logo goes. We come back the same business day with real numbers, not a range.

Sport-Tek ST640 specs

Style numberSport-Tek ST640 PosiCharge® RacerMesh® (SanMar)
Fabric100% polyester flat back mesh with PosiCharge technology
Weight3.8 oz/yd²
DetailsMoisture-wicking, tag-free, flat knit collar, taped neck, 3-button placket, set-in open hem sleeves
Colors21
SizesFull adult size run; ladies and youth companion styles available

If your crew works outside, this is the polo they will thank you for. For a dressier front-of-house look, compare the K110 - we will quote both.

How the ST640 decorates

This is the part most printers will not tell you before they take your money.

Built to breathe

The flat back mesh is the whole point – noticeably cooler than a standard polo. Landscapers, valet, outdoor events, patio staff.

PosiCharge keeps it looking new

Color-lock technology means team colors stay bright and logos stay crisp through commercial washing.

100% poly, handled properly

Heat-sensitive fabric gets low-temperature finishing, and any printed decoration runs with a low-bleed process so dye stays out of the design. Standard here.

Matching performance tees? The Sport-Tek ST350 runs in coordinating colors – one team look, tees and polos.

Sport-Tek ST640 questions, answered

What is the minimum order on ST640 polos?

24 pieces, with no setup fees. Mix colors and sizes inside that 24 with the same logo.

ST640 or K110 - which polo should I pick?

The ST640 is the breathability champion - the pick for anyone sweating outdoors. The K110 is the snag-resistant classic uniform look with UPF 30. Tell us who is wearing it and we will point you right.

Does it match the ST350 tees?

Yes - same PosiCharge color system, so a team can run tees and polos in one coordinated color. We can decorate both in one order.

Embroidery or print?

Either works; embroidery is the usual pick for polos. The mesh face embroiders cleanly with proper backing, which we handle in-house.

Will it fade?

That is what PosiCharge is for - it locks in the garment color through repeated washing. Wash cold, skip softener, dry low.

Do you ship, or is this local pickup only?

Both. We are in Deerfield Beach and plenty of customers pick up, but we ship orders anywhere in the US.

Ready to price your order?

24-piece minimum. No setup fees. Same-day pricing from a shop that runs this blank every week.

Also see the Port Authority K110 and ST550, or contact us.