Sport-Tek ST420 Posi-UV Pro Tee.

Features

4 oz, 100% polyester interlock with PosiCharge technology that locks in color and prevents fading

UPF rating of 50 that blocks over 98% of harmful UV rays

Smooth polyester interlock that stays moisture friendly and easy to care for

Set in sleeves for a neat, comfortable shoulder fit

Removable tag for comfort and relabeling

Sizes	24-47	48-71	72-143	144-239	240-359	360+	Quantity
XS C	$8.38	$7.55	$7.24	$6.94	$6.76	$6.45	- +
S C	$8.38	$7.55	$7.24	$6.94	$6.76	$6.45	- +
M C	$8.38	$7.55	$7.24	$6.94	$6.76	$6.45	- +
L	$8.38	$7.55	$7.24	$6.94	$6.76	$6.45	SOLD Get restock alert
XL C	$8.38	$7.55	$7.24	$6.94	$6.76	$6.45	- +
2XL C	$9.46	$8.62	$8.29	$7.98	$7.78	$7.45	- +
3XL C	$11.62	$10.75	$10.40	$10.06	$9.83	$9.45	- +
4XL	$12.71	$11.82	$11.45	$11.10	$10.86	$10.45	SOLD Get restock alert

Description

The Sport-Tek ST420 Posi-UV Pro Tee is a light, performance ready tee built for outdoor activity and clean, professional branding. It is made from a 4 ounce 100% polyester interlock with PosiCharge technology and a UPF rating of 50, so it blocks harmful UV rays while the PosiCharge locks in color and prevents logos from fading through repeated laundering and sun exposure. The smooth polyester interlock stays moisture friendly, wrinkle resistant, and easy to care for, and the lightweight build keeps it breathable and comfortable through long days in the sun. That protective, performance ready character makes the ST420 a strong choice for outdoor programs, teams, gyms, corporate programs, and everyday active wear.

The construction keeps things clean and comfortable. Set in sleeves give the shoulders a neat, comfortable fit, and the smooth polyester interlock gives designs a clean, even surface to print on. The UPF 50 protection blocks over 98% of harmful UV rays for dependable sun coverage, and a removable tag allows for comfort and easy relabeling, ready for your logo.

Care Instructions

Machine wash cold on a gentle cycle with like colors.
Do not bleach or use fabric softener, since this protects the PosiCharge technology and the UV protection.
Tumble dry low.
Do not iron directly over any decoration.
Store folded in a cool, dry place.

Available Colors

Deep Red, Black, Bright Seafoam, Cardinal, Dark Smoke Grey, Forest Green, Kelly Green, Light Blue, Marine Green, Sapphire, and more.

Available Sizes

XS, S, M, L, XL, 2XL, 3XL, 4XL

Customization Options

Embroidery
Screen Printing
Direct-to-film

Size Chart

	XS	S	M	L	XL	2XL	3XL	4XL
Chest	32-34	35-37	38-40	41-43	44-46	47-49	50-53	54-57

Brand Intro

Known for its athletic polos, moisture-wicking tees, hoodies, and lightweight jackets, the brand focuses on functional fabrics that stay comfortable under pressure. It’s widely trusted by teams, schools, and businesses that need consistent quality for uniforms and branded apparel. In the wholesale space, Sport-Tek has become a benchmark for dependable, performance-driven activewear that works in both sport and everyday use.

To learn more, visit our Sport-tek brand page

Shipping and Return

Free shipping on orders over $250 anywhere in the US. A $10 flat fee applies on orders under $250.
Orders placed before 3 p.m. CST are processed and shipped the same day. Delays may occur during sales or peak shopping periods.
Shipping options include Ground, Express, and ASAP depending on how fast you need delivery.
Delivery times range from 2–5 business days for Ground, 2–3 days for Express, and next business day for ASAP (based on cut-off times).
Returns are accepted within 30 days with approved RA. Items must be unused and in original condition. Restocking fees may apply in some cases.