Sport-Tek ST340 PosiCharge RacerMesh Tee | Moisture-Wicking Performance T-Shirt

The Sport-Tek ST340 PosiCharge RacerMesh Tee delivers professional-grade moisture management and breathability at a competitive wholesale price point. Engineered with ultra-fine flat back mesh construction and color-preserving PosiCharge technology, this performance tee serves athletic programs, corporate wellness initiatives, team uniform buyers, and custom apparel decorators who demand reliable moisture-wicking function without the premium jersey price tag. Available in extended sizing from XS through 4XL and a comprehensive color palette, the ST340 provides the foundation for screen printing, heat transfer, and embroidery decoration across sports leagues, fitness centers, promotional campaigns, and employee uniform programs.

Key Product Specifications

• Fabric: 3.8-ounce, 100% polyester flat back mesh
• Construction: RacerMesh ultra-fine flat back construction
• Technology: PosiCharge color-lock technology
• Label: Tag-free label
• Sleeves: Set-in sleeves
• Sizes: XS, S, M, L, XL, 2XL, 3XL, 4XL
• Colors: Black, White, Silver, Maroon, True Royal Heather, Pond Blue, Grey Heather, True Royal, Neon Yellow, Graphite, True Red, Neon Orange, Deep Red, True Navy, Neon Green

Construction & Material Breakdown

The ST340 utilizes Sport-Tek's proprietary RacerMesh fabric platform, a 3.8-ounce 100% polyester flat back mesh engineered for maximum airflow and rapid moisture transfer. The ultra-fine mesh structure creates microscopic channels that pull perspiration away from skin while maintaining opacity and durability through repeated industrial laundering cycles. Unlike heavier interlock or jersey knits that trap heat and moisture, the flat back mesh architecture provides continuous ventilation during high-output activity.

PosiCharge technology is molecularly integrated into the polyester fiber structure rather than applied as a topical finish. This process locks pigment at the fiber level, preventing dye migration and color fade that typically occurs with standard polyester garments exposed to moisture, friction, and UV exposure. The result is sustained color vibrancy across hundreds of wash cycles, critical for uniform programs where color consistency across multiple order cycles determines professional appearance standards.

Set-in sleeve construction provides a traditional fit profile with full range of motion through the shoulder girdle. The tag-free label eliminates neck irritation common in athletic and high-movement applications, while the crew neck collar maintains shape integrity without binding or stretching out after extended wear. Flatlock seaming throughout the garment reduces chafing points and increases tensile strength at stress zones including underarm, shoulder, and side seams.

Moisture Management & Performance Characteristics

The flat back mesh structure of the ST340 creates a dual-layer moisture management system. The interior surface contacts skin and initiates capillary wicking action, pulling liquid perspiration away from the body. The exterior mesh layer maximizes surface area exposure to ambient air, accelerating evaporation rates and maintaining thermal regulation during sustained physical activity. This moisture transport mechanism functions across temperature ranges and humidity levels, making the ST340 suitable for indoor training facilities, outdoor athletic events, warehouse operations, and climate-controlled corporate fitness programs.

Breathability performance in the ST340 exceeds standard cotton or cotton-blend tees by a significant margin. The open mesh construction allows continuous air circulation against skin, reducing heat buildup and maintaining core temperature stability. For athletic programs operating in warm weather conditions or high-intensity training environments, this ventilation capacity directly impacts performance output and recovery time between activity intervals.

Worksite & Industry Applications

The Sport-Tek ST340 serves multiple commercial and institutional uniform segments. Corporate wellness programs specify the ST340 for employee fitness initiatives, company sports leagues, and health incentive campaigns where moisture-wicking performance tees support active participation. The professional appearance, extended size range, and color options align with corporate branding requirements while the tag-free construction and breathable mesh meet comfort standards for voluntary employee engagement.

Athletic programs including youth sports leagues, recreational teams, intramural competitions, and club sports rely on the ST340 as a cost-effective alternative to premium performance jerseys. The PosiCharge color-lock technology maintains team color consistency across multiple seasons and wash cycles, while the moisture-wicking mesh supports player comfort during games and practice sessions. Coaches and athletic directors appreciate the wholesale pricing structure that allows budget allocation toward additional program needs without sacrificing garment performance.

Promotional product distributors and custom apparel decorators stock the ST340 for corporate events, charity runs, fitness challenges, and branded merchandise campaigns. The smooth polyester surface accepts screen printing, heat transfer vinyl, and direct-to-film decoration methods with excellent ink adhesion and color reproduction. Event organizers seeking performance apparel for participants in 5K races, obstacle courses, cycling events, and outdoor festivals specify the ST340 for its combination of athletic function and decoration compatibility.

Fitness centers, personal training studios, bootcamp programs, and yoga facilities utilize the ST340 for instructor uniforms and retail merchandise. The professional appearance maintains brand consistency across staff while the moisture-wicking mesh performs through multiple training sessions per day. Retail programs benefit from the extended color selection and size availability, allowing facilities to offer performance apparel that matches their brand identity and serves diverse client demographics.

Decoration & Branding Compatibility

The 100% polyester flat back mesh of the ST340 accepts multiple decoration methods with reliable results. Screen printing performs well on the smooth exterior surface, with plastisol and water-based inks achieving solid opacity and color vibrancy. The PosiCharge technology prevents dye migration issues that can occur when heat-curing inks on standard polyester fabrics, maintaining clean print edges and preventing color bleed over time.

Heat transfer vinyl and heat transfer film applications bond securely to the polyester mesh surface. The 3.8-ounce fabric weight provides sufficient structure to support detailed graphics and text without puckering or distortion during the heat press process. Decorators should follow manufacturer temperature and pressure guidelines specific to polyester substrates to ensure proper adhesion and wash durability.

Embroidery decoration is compatible with the ST340, though the mesh construction requires proper stabilization techniques. A cutaway or tearaway backing stabilizer prevents fabric distortion during the embroidery process, while appropriate needle selection and tension settings accommodate the open mesh structure. Left chest logo placement, sleeve decoration, and back yoke designs perform well when proper embroidery protocols are followed. The tag-free interior label area provides an alternative decoration location for brand identification or size information when exterior branding is not desired.

Sizing & Fit Guidance

The Sport-Tek ST340 follows a traditional unisex fit profile with a slightly relaxed cut through the body and sleeves. This fit accommodates a broad range of body types while maintaining a professional appearance suitable for team uniforms and corporate programs. The set-in sleeve construction provides unrestricted shoulder movement without the athletic taper of performance-cut jerseys, making the ST340 appropriate for both active sports applications and casual wear environments.

Extended sizing from XS through 4XL ensures program managers can outfit entire teams, departments, or event participant groups from a single style. Consistent sizing across the full size range simplifies bulk ordering and inventory management for uniform programs that require multiple reorders over extended time periods. The availability of both standard and extended sizes reduces the need for alternative style substitutions that can compromise visual uniformity across groups.

For programs requiring women's specific fit profiles, the Sport-Tek LST340 offers the same RacerMesh fabric and PosiCharge technology in a contoured silhouette. Coordinating men's and women's styles from the same fabric platform maintains color consistency and performance characteristics across mixed-gender teams and programs.

Bulk Ordering & Wholesale Programs

Joe's USA maintains comprehensive inventory depth on the Sport-Tek ST340 across the full size and color matrix. Volume pricing structures support athletic programs, corporate uniform buyers, promotional product distributors, and custom apparel decorators with competitive wholesale rates on quantity orders. Bulk purchasing programs allow organizations to secure consistent pricing across multiple order cycles, critical for annual uniform budgets and multi-year program commitments.

Reorder programs ensure color and size availability for ongoing uniform needs. Athletic programs adding new team members mid-season, corporate wellness initiatives expanding participation, and promotional campaigns requiring additional inventory can access the same style, color, and decoration specifications as original orders. This reorder capability eliminates the visual inconsistency that occurs when substitute styles are required due to discontinued products or limited availability.

Decoration services are available for customers requiring finished, ready-to-distribute garments. Screen printing, heat transfer, and embroidery capabilities support custom branding requirements with quick turnaround times on production orders. Program managers can consolidate garment procurement and decoration through a single vendor relationship, streamlining logistics and reducing coordination complexity across multiple suppliers.

Care & Maintenance

The 100% polyester construction of the ST340 provides simplified care requirements suitable for institutional laundering programs and home washing. Machine wash cold or warm with like colors, using standard detergent without fabric softener. Fabric softener can coat polyester fibers and reduce moisture-wicking performance over time. Tumble dry low or hang dry to maintain fabric integrity and extend garment lifespan.

The PosiCharge color-lock technology maintains color vibrancy through repeated wash cycles without special treatment or color-safe detergent requirements. Athletic programs laundering uniforms after every use and corporate programs with frequent wear schedules benefit from the color retention and fabric durability that reduces replacement frequency and lowers total cost of ownership.

Best-Selling Sport-Tek Performance Apparel

Customers outfitting athletic programs, corporate teams, and promotional events with the Sport-Tek ST340 frequently specify these complementary Sport-Tek performance styles:

• Sport-Tek LST311 Women's Jersey Knit Squad Short – Moisture-wicking women's athletic short with jersey knit construction for team uniforms and active programs
• Sport-Tek ST420LSH Posi-UV Pro Long Sleeve Hoodie – UPF 50+ sun protection hoodie with moisture management for outdoor athletic programs and sun-safe team apparel
• Sport-Tek JST489 Repeat 1/2-Zip Short Sleeve Jacket – Lightweight short sleeve jacket with moisture-wicking performance for coaches and athletic staff
• Sport-Tek JST56 Waterproof Insulated Jacket – Weather-resistant insulated outerwear for outdoor athletic programs and cold-weather team apparel
• Sport-Tek LST307 Women's PosiCharge Replica Jersey – Women's replica jersey with PosiCharge technology for team sports and athletic uniforms
• Sport-Tek ST307 PosiCharge Replica Jersey – Men's replica jersey with moisture-wicking mesh and PosiCharge color-lock for team uniforms

Related Sport-Tek Collections

Explore additional Sport-Tek performance apparel and team uniform options:

• Sport-Tek Activewear – Complete line of moisture-wicking performance apparel for athletic programs and active uniform needs
• Sport-Tek Polos – Performance polo shirts with moisture management and PosiCharge technology for corporate and team uniforms
• Sport-Tek Women's – Women's specific performance apparel with contoured fits and athletic function
• Sport-Tek Outerwear – Performance jackets, hoodies, and layering pieces for athletic programs and outdoor team apparel

Why Specify the Sport-Tek ST340

The Sport-Tek ST340 PosiCharge RacerMesh Tee delivers verified moisture-wicking performance, color-lock technology, and decoration compatibility at a wholesale price point that supports budget-conscious athletic programs, corporate uniform initiatives, and promotional apparel campaigns. The ultra-fine flat back mesh construction provides superior breathability compared to standard jersey or interlock tees, while the PosiCharge fiber technology maintains color vibrancy through hundreds of wash cycles. Extended sizing from XS through 4XL and a comprehensive color selection ensure program managers can outfit diverse groups with consistent style, fit, and performance characteristics.

For athletic directors managing team uniform budgets, corporate wellness coordinators outfitting employee programs, promotional product distributors serving active event markets, and custom apparel decorators requiring reliable performance blanks, the ST340 combines functional design, proven durability, and competitive wholesale pricing. Joe's USA maintains inventory depth across the full size and color range with volume pricing programs and reorder capabilities that support ongoing uniform needs and multi-year program commitments.