UltraClub 8420 - Men's Cool & Dry Sport Performance Interlock T-Shirt - Ice Blue
Selected Color: Ice Blue24 colors
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Description
The UltraClub 8420 is a 4 oz 100% polyester interlock performance tee with moisture-wicking, UPF 30+ UV protection, and pill-resistant and snag-resistant finishes. The pill-resistant and snag-resistant treatments set the 8420 apart from standard polyester performance tees in the wholesale channel: the fabric holds its smooth surface through repeated washing and physical contact, which matters for athletic teams, outdoor staff, and corporate programs where the garment sees heavy use. The UPF 30+ rating blocks over 96% of UV radiation. Sizes run from S to 6XL, which covers the extended size range that many competing performance tees cap at 3XL or 4XL.
The 100% polyester substrate opens the full range of poly-compatible decoration methods. For sublimation, the 8420 takes full-colour sublimation on white and light-coloured garments with vibrant, permanent results, since the dye bonds directly into the polyester fibre. The pill-resistant finish does not interfere with sublimation bonding. Route dark bodies to DTF or screen printing. For DTF transfers, the polyester surface bonds well with transfer adhesives at standard press settings across the full colour card. For screen printing, plastisol prints on the poly face. The 100% polyester carries the highest dye migration risk. Use a poly-blocking underbase and cure at the minimum effective temperature on all coloured garments without exception. For embroidery, the 4 oz interlock handles left-chest logos with a cut-away backing. For vinyl/HTV, the polyester surface holds vinyl at standard settings.
- Brand: UltraClub
- Style: 8420 (UltraClub Men's Cool & Dry Sport Performance Interlock T-Shirt)
- Fabric: 100% polyester interlock, moisture-wicking, pill-resistant, snag-resistant
- Weight: 4 oz/yd2
- Construction: UPF 30+. Moisture-wicking. Pill-resistant. Snag-resistant. Double-needle crew neck. Neck tape. Open cuffs and hem.
- Fit: Men's, athletic
- Sizes: S, M, L, XL, 2XL, 3XL, 4XL, 5XL, 6XL
- Colors available: 24 colours (check current availability on the product page)
- Care: Machine wash cold. Tumble dry low. Do not iron.
The 8420 competes with the Team 365 TT11 Zone Performance and the Sport-Tek ST350 PosiCharge in the wholesale performance tee market. The 8420 at 4 oz adds pill-resistant and snag-resistant finishes with UPF 30+ and extends to 6XL, which makes it the pick for programs that need durability and extended sizing. The TT11 at 3.8 oz is the lowest-priced option with UPF 40+ and cationic dyes. The ST350 at 3.8 oz adds PosiCharge colour-lock for screen-print reliability. Cross-shop on durability features, UV rating, size range, and unit cost for your program. TheClothingSpace stocks the 8420 at wholesale pricing with bulk discounts that increase as case and unit quantities rise, among the lowest prices online for this style, with fast US shipping on stocked colours.
Comparing blank performance tees for your team or corporate program? Browse all wholesale blank t-shirts.
Features
- 100% preshrunk cotton
- Made with sustainably and fairly grown USA cotton
- Seamless rib at neck
- Taped shoulder-to-shoulder
- Double-needle stitching throughout
- Tear-away label
- Quarter-turned to eliminate center crease
- 7/8" collar
- Classic fit
Shipping & Returns
All Blank orders of $59 or more are shipped FREE same day via UPS Ground. Blank orders under $59 will qualify for the following shipping options:
- USPS Blank Apparel Shipping (2-4 Business Days): $4.99
- UPS Ground (1-2 Business Days): $8.99
Read our Shipping Policy for more information.
Fill out the Blank Apparel Return Form within 30 days of the order date to be eligible for a refund or return.
Note: All blank orders shipped outside of the continental US are not eligible for return, exchange, or refund.

Decoration Method Compatibility
How this blank performs across popular decoration methods.
| Method | Compatible | Notes |
|---|---|---|
| Sublimation | ✓ | 100% polyester takes full-colour sublimation on white and light garments with vibrant, permanent results; pill-resistant finish does not interfere with dye bonding |
| DTF Transfer | ✓ | polyester surface bonds well with transfer adhesives at standard press settings across the full colour card |
| Screen Print (Plastisol) | ✓ | plastisol prints on poly face; 100% polyester carries maximum dye migration risk, poly-blocking underbase and minimum cure temp mandatory on all colours |
| Embroidery | ✓ | 4 oz interlock handles left-chest logos with cut-away backing for stability |
| Vinyl / HTV | ✓ | polyester surface holds vinyl at standard time and temperature |
| Screen Print (Water-based / Discharge) | ✗ | 100% polyester does not take water-based or discharge inks; route to plastisol with poly-block or sublimation |
| DTG | ✗ | 100% polyester is not a standard DTG substrate; route to sublimation or DTF |
How Does the UltraClub 8420 Compare?
| Spec | UltraClub 8420 Cool & Dry Performance | Team 365 TT11 Zone Performance | Sport-Tek ST350 PosiCharge |
|---|---|---|---|
| Starting At | $4.09 | $5.03 | $6.60 |
| Weight | 4 oz | 3.8 oz | 3.8 oz |
| Yarn / Fabric | 100% polyester interlock | 100% polyester interlock, cationic dyes | 100% polyester interlock, PosiCharge |
| Fit | Men's athletic (S-6XL) | Men's team fit (XS-4XL) | Unisex athletic (XS-4XL) |
| Construction | Pill-resistant, snag-resistant, UPF 30+ | Moisture-wicking, UPF 40+, heat-seal label | PosiCharge colour lock, moisture-wicking |
| Best For | Durable poly performance tee with extended sizing to 6XL | UPF 40+ performance tee with cationic colour brightness | PosiCharge colour retention for screen-print programs |
Fabric Blend by Color Group
Not all colorways share the same fabric composition. Check the blend before ordering for decoration jobs where substrate matters.
| Color Group | Blend | Print Consideration |
|---|---|---|
| All standard colours | 100% polyester interlock | 100% polyester carries maximum dye migration risk on all coloured garments; poly-blocking underbase and minimum cure temp mandatory for plastisol |
| White and light colours | 100% polyester interlock | Best sublimation candidates; full-colour sublimation bonds permanently into the polyester fibre with vibrant results |
Size Chart
Measurements in inches. Source: alphabroder / UltraClub spec
| Size | Chest (inches) | Length (inches) |
|---|---|---|
| S | 18 | 28 |
| M | 20 | 29 |
| L | 22 | 30 |
| XL | 24 | 31 |
| 2XL | 26 | 32 |
| 3XL | 28 | 33 |
| 4XL | 30 | 34 |







