Compete in Color. Stay That Way.
The Sport-Tek ST550 PosiCharge® Competitor™ Polo is built for performance — and engineered to look the part, wash after wash. The PosiCharge® technology locks in color so it doesn't fade, bleed, or dull over time. At just 3.8 oz., the 100% polyester interlock fabric is ultralight, moisture-wicking, and built to move. This is the polo for athletes, teams, and anyone who demands performance from their wardrobe without sacrificing the look.
Construction Deep-Dive
Fabric: 3.8 oz. 100% polyester interlock with PosiCharge® technology — interlock is a double-knit construction where two layers of fabric are knitted together simultaneously, creating a fabric that's smoother, more stable, and more durable than single-knit jersey. At 3.8 oz., it's ultralight and breathable — ideal for active wear, warm environments, and all-day comfort.
PosiCharge® Technology: Sport-Tek's proprietary color-locking system — PosiCharge® uses a heat-set dyeing process that bonds color molecules directly to the polyester fiber at a molecular level. The result: colors that resist fading, bleeding, and dulling through repeated washing and heavy use. What you see on day one is what you get on day one hundred.
Collar: Flat knit collar — a clean, structured collar that lies flat and holds its shape without the bulk of a rib knit. Professional, polished, and performance-appropriate.
Neck: Taped neck — interior neck tape reinforces the collar seam and prevents stretching at the neckline over time. The detail that keeps the collar looking sharp after every wash.
Placket: 3-button placket with dyed-to-match buttons — color-matched hardware for a cohesive, intentional finish. No contrasting buttons, no visual interruption.
Sleeves: Set-in, open hem sleeves — set-in construction creates a clean, tailored shoulder line. Open hem allows for a relaxed, comfortable fit at the sleeve opening without binding.
Label: Removable tag for comfort and relabeling — clean interior finish, ideal for team and corporate customization programs.
Color Moods
Kelly Green — Bright, saturated green with athletic energy and team spirit. The color of the field, the court, and the course — bold, vibrant, and impossible to miss. The PosiCharge® technology keeps this green as vivid on wash 50 as it was on day one.
Iron Grey — Cool, medium grey with a modern, understated edge. The neutral that works with every color in a team palette — versatile, professional, and endlessly wearable. The polo that anchors the lineup.
Forest Green — Deep, rich forest green with a grounded, outdoorsy confidence. Darker and more sophisticated than Kelly Green — the color for the team that wants to look sharp without shouting.
Deep Red — Bold, saturated red with power and presence. The color of competition, confidence, and team identity. PosiCharge® keeps the red rich and true — no fading, no dulling, just the color you chose.
Styling Guide
🏋️ Team Uniform: Any colorway with an embroidered or heat-transfer logo — the removable tag makes relabeling easy, and PosiCharge® ensures the shirt color stays consistent across the entire team's wardrobe.
⛳ On the Course: Iron Grey or Forest Green with golf shorts and athletic shoes — the ultralight interlock fabric and open hem sleeves give full range of motion for every swing.
🏢 Corporate Casual: Iron Grey or Deep Red with chinos and loafers — the flat knit collar and dyed-to-match buttons keep it polished and professional.
🏃 Active & Outdoor: Kelly Green or Forest Green with athletic shorts and training shoes — moisture-wicking polyester handles the heat while PosiCharge® keeps the color sharp.
🌟 Event & Promo: Any colorway in bulk for events, tournaments, or branded giveaways — the XS–4XL size run covers every team member, and the 4 color options make it easy to match any brand palette.
Care Guide
- 🌊 Machine wash cold, gentle cycle
- 🔄 Tumble dry low — PosiCharge® technology maintains color through repeated washing
- 🚫 Do not bleach — protects PosiCharge® color-lock finish
- 🚫 Do not iron directly on fabric
- 🚫 Do not dry clean
- ✅ Wash with like colors — PosiCharge® prevents bleeding but washing with similar colors is always best practice
🌊 Machine wash cold, gentle cycle.
🔄 Tumble dry low — PosiCharge® technology maintains color through repeated washing.
🚫 Do not bleach — protects PosiCharge® color-lock finish.
🚫 Do not iron directly on fabric.
🚫 Do not dry clean.
✅ Wash with like colors — PosiCharge® prevents bleeding but washing with similar colors is always best practice.
