Sport-Tek K500 vs K540: Which Polo to Choose
The K500 micro-pique and K540 PosiCharge RacerMesh are both Sport-Tek polyester performance polos, but they serve different applications: the K500 looks like a traditional corporate polo while the K540 is built for athletic and team use.

Fabric and Construction
The K500 uses a 100% polyester micro-pique knit that mimics the texture and appearance of a traditional cotton pique polo. It is smooth to the touch, has a subtle pique grid texture, and looks at home in a corporate or business-casual setting. Moisture management is built in through the polyester construction, but the priority is appearance.
The K540 PosiCharge RacerMesh uses a 100% polyester RacerMesh knit that is more open, lightweight, and performance-oriented. The mesh construction provides better ventilation, more stretch, and a more athletic drape. It is clearly a performance product in appearance and function.
Appearance and Market Positioning
The K500 competes with cotton pique polos on appearance. At a glance, the micro-pique texture reads as a traditional polo. This makes it the right choice for corporate uniforms, restaurant and hospitality staff wear, and any application where a professional polo appearance is required but moisture management is also needed.
The K540 signals athletic performance. Its open mesh, more fitted silhouette, and lightweight drape read clearly as a sport product. It is the right choice for team uniforms, golf events, outdoor staff, and any end use where athletic performance is the primary message.
DTF on Performance Polos
Both the K500 and K540 are 100% polyester, which means dye migration management is essential for any white or light-color print. Press at 285°F for 12 seconds at medium pressure. Apply poly blocker to the print area before pressing and allow it to dry fully.
The K540 RacerMesh fabric is more open-weave, which can allow the transfer adhesive to penetrate slightly differently than on the denser micro-pique of the K500. Test one piece of any new polo style before a full production run to verify edge adhesion on the specific fabric you are working with.
Which to Stock
Most decorator businesses need both. Stock the K500 as the default corporate polo order blank. It handles the majority of business and hospitality uniform work without customers asking questions about fabric type.
Stock the K540 for team and athletic accounts. Golf teams, recreational leagues, and outdoor event staff are the natural K540 customer. Having both in your catalog allows you to handle any polo inquiry with a specific, confident recommendation.
