Sport-Tek is the leading performance apparel brand in the wholesale blank market, built specifically for businesses, sports organizations, and teams that need athletic-grade t-shirts combining moisture management, durability, and reliable print compatibility. The brand's PosiCharge technology — which locks color and prevents dye migration during decoration — makes Sport-Tek the preferred choice for decorators who print on polyester fabrics at scale.
At Apparel O' Clock, we carry wholesale Sport-Tek t-shirts across the full performance lineup in the sizes, colors, and styles that athletic and branded apparel programs depend on. Whether you are equipping a sports league, stocking a gym's branded inventory, or running a custom print operation focused on performance blanks, Sport-Tek delivers the technical quality and decoration reliability that serious buyers require.
Sports organizations, athletic departments, gyms, corporate wellness teams, and activewear brands consistently turn to Sport-Tek t-shirts when they need performance apparel that functions at a high level while maintaining a polished, professional appearance. The brand's moisture-wicking fabrics, UV protection options, and athletic construction address the specific demands of buyers who cannot compromise on performance properties for the sake of cost.
Through our wholesale t-shirts category, bulk buyers can access Sport-Tek's core performance tee lineup including short sleeve, long sleeve, and specialty styles across men's, women's, and youth sizing. These products serve recreational leagues, competitive athletic programs, corporate fitness initiatives, school athletic departments, and branded activewear labels that need reliable performance at a wholesale price that makes large-group outfitting financially practical.
The brand's consistent quality and broad style range make it the right choice for organizations that outfit large groups where uniform appearance and reliable performance across every unit are non-negotiable requirements. Sport-Tek sits alongside Gildan, Bella + Canvas, and other leading brands in our full catalog — visit the Sport-Tek apparel to see every available category and style in one place.
Sport-Tek blank t-shirts are engineered with custom decoration in mind, and their construction addresses the specific challenges that polyester fabrics present for screen printers and decorators. PosiCharge technology is the defining technical feature of most Sport-Tek styles — it works by locking the dye molecules in the polyester fabric during the heat of screen printing or heat transfer, preventing the color migration and ghosting that can ruin decorated garments on standard polyester blanks.
The Sport-Tek ST350 PosiCharge Competitor Tee is the brand's flagship performance blank, offering 100% polyester construction with moisture-wicking properties, set-in sleeves, and a tag-free label for easy rebranding. Its smooth, even surface produces sharp, clean results for heat transfer and sublimation decoration, and its PosiCharge construction makes it one of the most reliable polyester blanks for screen printing operations that work with athletic clients. The ST350LS Long Sleeve version extends the lineup for programs that need full-coverage performance apparel for cooler conditions or UV protection requirements.
Our screen printing services are fully compatible with Sport-Tek performance tees, with dye-migration-resistant inks and production processes designed specifically for polyester substrates. For full-color and photographic artwork, our DTF printing services deliver sharp, durable results on Sport-Tek blanks across every color in the lineup.
For brands operating in the athletic, fitness, or outdoor market, Sport-Tek t-shirts provide a foundation for custom apparel that communicates performance and professionalism in a way that standard cotton blanks cannot. The brand's moisture-wicking, tag-free, and UV-resistant properties add functional value to decorated garments that directly benefits the end wearer — which matters for brands that want their custom apparel to be worn actively rather than stored in a drawer.
Custom Sport-Tek t-shirts are widely used by recreational and competitive sports leagues producing team uniforms, gym and fitness brands building branded retail collections, corporate event and wellness teams outfitting staff in coordinated athletic apparel, and youth athletic programs that need matching performance shirts across a full roster. The brand's youth sizing mirrors the adult lineup in construction and color availability, making it practical to build cohesive programs across all age groups from a single brand source.
Our embroidery services are available on Sport-Tek performance tees for programs that require logo embroidery alongside or instead of print decoration. Left chest placements work effectively on Sport-Tek's structured polyester construction, delivering clean, professional results for corporate and hospitality-adjacent athletic programs.
At Apparel O' Clock, we stock Sport-Tek t-shirts with the depth and availability that athletic programs and performance-focused apparel businesses require. Our inventory covers the most in-demand Sport-Tek styles in the full color and size range, supporting consistent reorders for seasonal programs and ongoing uniform accounts without supply disruptions.
Our tiered wholesale pricing applies automatically at checkout based on order quantity, rewarding volume with progressive discounts that reduce per-unit costs as programs scale. Whether you are placing a first order for a new athletic program or managing a high-volume account with regular reorder cycles, the same competitive pricing and fast fulfillment apply across every Sport-Tek purchase.
Sport-Tek performance t-shirts are available in a color palette built around the athletic and team tones that sports organizations and branded activewear programs need most. Core colors include black, white, true red, true navy, true royal, forest green, true purple, and a selection of heather athletic tones that provide a more fashion-forward option for lifestyle and branded merchandise programs.
The brand's fit is athletic and performance-oriented, designed for active movement rather than relaxed casual wear. Sport-Tek's standard tee silhouette is slightly fitted through the torso with set-in sleeves that allow full range of motion, and the fabric's moisture-wicking construction is designed to move with the body during athletic activity. Men's, women's, and youth-specific fits are available across the core lineup, giving programs that outfit mixed-gender and mixed-age groups a complete solution from a single brand source.
The Sport-Tek ST350 PosiCharge Competitor Tee is the brand's best-selling performance blank and the most widely ordered athletic t-shirt in the wholesale market. Its 100% polyester construction, PosiCharge color-lock technology, tag-free label, and athletic fit make it the default choice for sports teams, gyms, and fitness brands that need dependable performance wear at a competitive wholesale price point.
The ST350LS Long Sleeve and the ST351 youth version extend the core lineup for programs that need full-coverage options or youth sizing alongside adult styles. Women 's-specific performance tees including the LST350 offer the same PosiCharge technology and moisture management in a cut designed for women, making Sport-Tek a complete solution for co-ed athletic programs and women's sports organizations that need technically appropriate performance apparel.
Sport-Tek t-shirts combine moisture-wicking performance fabrics, PosiCharge color-lock technology, and athletic construction at wholesale pricing — making them the standard blank for sports teams, gyms, and fitness brands that need functional, professionally decorated performance apparel at scale.
Yes, though polyester fabrics require specific inks and processes to prevent dye migration. Sport-Tek's PosiCharge technology reduces dye migration during decoration, and using low-bleed inks with proper curing temperatures produces clean, durable results. Heat transfer and DTF printing are also highly effective on Sport-Tek blanks.
PosiCharge is Sport-Tek's proprietary technology that locks dye molecules into polyester fabric during the heat of decoration, preventing color migration and ghosting that commonly affect standard polyester blanks when screen printed or heat transferred.
The Sport-Tek ST350 PosiCharge Competitor Tee is the brand's top-selling style, widely ordered for sports team uniforms, gym branded apparel, corporate athletic programs, and performance-focused merchandise collections.
Yes. Apparel O' Clock offers screen printing, DTF printing, and embroidery services on all Sport-Tek t-shirt styles. Blank wholesale orders and fully decorated finished garments are both available at competitive wholesale pricing.
