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Sport-Tek YST359 Youth PosiCharge Competitor 2-Button Henley
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The Sport-Tek YST359 Youth PosiCharge Competitor 2-Button Henley solves a small problem most youth athletic apparel doesn't address: how do you get a team to look a step sharper than a basic tee, without stepping outside the youth budget tier? In our opinion, the answer is a henley. The 2-button placket and clean collar detail give this shirt a more finished, more jersey-adjacent look than a standard youth tee, while the 3.8 oz PosiCharge fabric handles the sweat, sun, and repeated washing that youth athletics puts a shirt through. At around $10 MSRP, it's the kind of piece a Little League team, a youth soccer club, or a school PE program can stock without stretching the budget, and it'll photograph on the sideline better than a plain tee will.
Why a henley instead of a tee?
A henley is a tee with a partial button placket at the neck (no full collar, no full button-up). Historically it started as an athletic undershirt worn by rowers and baseball players, and it still carries that slightly more athletic, slightly more polished look. For youth team apparel specifically, the henley reads a little more like a real jersey than a tee does. That matters for sports where the aesthetic sits alongside the performance (baseball warmup shirts, soccer sideline gear, PE uniforms that want to feel like a step up from a gym tee). The 2-button placket also gives the shirt a natural focal point for decoration: a small chest logo sits cleanly next to the buttons, which is a placement that reads intentional and considered, rather than the wall-of-blank-fabric look you get on a plain tee. Small design detail, real visual difference.
PosiCharge, in plain language
PosiCharge is Sport-Tek's color-locking fabric technology, and it's the reason the Competitor family (of which the YST359 is a part) is such a workhorse for team decoration. What it does: during the dyeing and finishing process, the polyester yarns are given a positive electrical charge that helps them attract and hold the dye. The practical effect on a decorated shirt is that the color of the fabric stays vibrant through repeated washing (rather than fading toward gray), and printed logos stay sharp because the ink bonds cleanly to the color-stabilized fabric. For team apparel that's going to get washed dozens of times over a season, that color-lock is the reason the shirts still look like a coordinated team in October instead of a faded mishmash.
What UPF 30+ actually means
UPF, or Ultraviolet Protection Factor, is the sun-protection rating for fabric (the same idea as SPF for sunscreen, but for what you're wearing). UPF 30+ means the fabric blocks at least 96.7% of UV radiation, which is the "good" tier of sun protection. For an outdoor youth sport, that's genuine coverage: it's what the American Academy of Dermatology recommends as the minimum for "good" UV protection in clothing. For most youth outdoor athletic contexts (baseball, soccer, softball, track), the YST359's UPF 30+ is enough. For genuinely sun-heavy environments (all-day tournaments in Arizona summers, water-adjacent camps, extended outdoor programs in southern latitudes), Sport-Tek's ST420 Posi-UV Pro line steps up to UPF 50+, which blocks 98% of UV, and has a youth version (YST420) worth considering. For everything else, the YST359 covers it.
The construction in plain language
The YST359 is 3.8 oz/yd² of 100% polyester interlock (interlock is a smooth, tight-knit fabric that lays flat and holds shape well, which is why it's a common substrate for performance apparel). The neckline uses a 2-button placket with dyed-to-match buttons, which keeps the color story clean rather than having black or white buttons interrupting the fabric. The label is tear-away for comfort. Youth sizing runs XS through XL. It's a lightweight, roomy fit that layers cleanly over a base layer or wears solo on its own.
Building a matched team program
The YST359 sits inside the broader Sport-Tek Competitor family, which is what makes it useful for a coordinated team decoration order. The adult version, the ST359 Competitor Henley, uses the same 3.8 oz PosiCharge fabric in adult XS through 4XL, which means a coach and a player can wear the same henley in adjusted sizing and it'll look like one uniform. If the henley silhouette isn't the right pick for all wearers, the youth YST350 Youth Competitor Tee is the standard crew-neck tee in the same PosiCharge fabric (the adult ST350 exists for parents and coaches), and the ST550 Competitor Polo covers a polo silhouette in the same fabric for coaches and staff. Everything in the family shares the color palette and the PosiCharge decoration story, so a mixed order of henleys for the team, tees for family, and polos for coaches all decorates and matches as one program.
Decoration
The YST359 decorates the way most Sport-Tek performance apparel does. Screen printing works cleanly, especially with the PosiCharge fabric holding color under the print. Heat-applied transfers (TPU, TPL, DTF) are a strong pick for team-specific numbers, names, and logos because they hold up well on polyester and give sharp edges on detail work. Embroidery works but is more common on the adjacent polo lineup than the henley itself. One important caveat that Sport-Tek flags directly in the spec: given the extreme heat required for sublimation, consult with your decorator before running sublimation on the YST359, and sample test the fabric by color before committing to a large production run. Not a deal-breaker, just a real consideration for sublimation-specific programs. (Want us to handle the decoration? Send your logo for custom screen printing, embroidery, or DTF transfers.)
Questions buyers ask
Why choose a henley for a youth team?
The henley reads a step sharper than a plain tee (the button placket gives it a more finished, more jersey-adjacent look) while sitting at essentially the same price tier. For youth baseball, softball, soccer sideline warmups, or a school PE program that wants a more distinguished look than a gym tee, the 2-button silhouette is a genuine visual upgrade. It's not for every team (a lot of youth sports still want the simplicity of a plain crew tee), but where the aesthetic matters, the henley earns its slot.
What does PosiCharge actually do to the shirt?
It's Sport-Tek's color-locking fabric treatment. During finishing, the polyester fibers get a positive electrical charge that helps them hold dye better, so the color of the shirt stays vibrant through repeated washing rather than fading toward gray. The same effect helps printed logos and numbers stay sharp on the decorated garment. For team apparel that's going to get washed a lot, this is the reason the YST359 still looks like a team in October instead of a faded set.
Is UPF 30+ enough sun protection for youth outdoor sports?
For most contexts, yes. UPF 30+ blocks over 96% of UV radiation and meets the American Academy of Dermatology's threshold for "good" UV protection. For all-day tournaments in extreme sun environments (Arizona in July, Florida water sports, Caribbean-latitude camps), the Sport-Tek ST420 Posi-UV Pro line steps up to UPF 50+ and has a youth version (YST420). For standard youth outdoor sports in normal sunlight, the YST359's UPF 30+ is a genuine layer of protection.
Can the YST359 be sublimated?
Yes, but Sport-Tek's own spec sheet flags it: because sublimation requires very high heat, sample test the fabric by color before committing to a large production run. Some colors handle sublimation better than others. Talk to your decorator early rather than late on this one.
Does it come in an adult size?
Yes. The adult ST359 uses the same 3.8 oz PosiCharge fabric in adult XS through 4XL. For a team order where kids and coaches all get the same style, the youth YST359 and adult ST359 pair up cleanly in the same fabric and decoration story.
Order the Sport-Tek YST359 Youth PosiCharge Competitor 2-Button Henley blank or fully custom decorated, with automatic bulk discounts at checkout, 1 to 3 day shipping, and free returns. Browse the full Sport-Tek collection or all youth wholesale apparel.
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Policies and Practices
Any order can be returned within 30 days of receipt. To be eligible for a return, your item must be: 1). unused, 2). unwashed, and 3).unaltered (it must be blank--no embroidery or printing, etc).
Make sure your item is in the same condition that you received it. It must also be in our original packaging.
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