When you hold this jersey, you immediately feel the difference in the weave. We built this KAWS x Seattle Mariners Blackout Baseball Jersey 2026 for those who live for the late-night innings and want a piece that hits just as hard in the gallery as it does in the stadium seats. The deep black base makes the iconic Companion graphics pop, giving you a clean, low-profile look that stands out without trying too hard.
This jersey is built for the die-hard fan who demands high-performance textiles that survive the grit of a full season. We utilized a reinforced double-knit structure that handles the humidity of T-Mobile Park while maintaining a sharp, blackout aesthetic that stays crisp in the stands or on the street.
Technical Specifications & Design Architecture
| Specification Attribute | Value / Description | Tactile & Durability Benefit |
|---|---|---|
| Material Composition | 100% Recycled Polyester Performance Mesh | High-tensile strength with moisture-wicking properties for rapid heat dissipation. |
| Physical Weight | 220 GSM Mid-weight Athletic Weave | Substantial drape that resists snagging during stadium movement. |
| Finish Technology | High-Density Silicone Inks | Prevents cracking and fading through repeated wash cycles. |
| Construction | Button-up front with reinforced stitching | Classic baseball collar allows for comfortable layering over hoodies. |
The Design Heritage
This collaboration honors the legacy of Seattle baseball, specifically referencing the 2001 record-tying season. By integrating the iconic “Companion” figure with the Mariners’ signature navy and teal palette, the design bridges the gap between contemporary street art and Pacific Northwest sports history. The blackout motif serves as a nod to the late-night West Coast games that define the broadcast schedule.
For the true M’s faithful, this jersey is the ultimate flex. Whether you are holding down the bleachers or grabbing a pre-game drink in SoDo, the XX detailing signals you know your art history as well as your strike zone. It is a grail-tier piece for those who keep their rotation tight and their fandom loud without saying a word.
Key Features
- Breathable Mesh: High-performance polyester blend keeps you cool during high-stakes games.
- Artistic Detailing: Official collaboration graphics that combine modern street style with classic diamond aesthetics.
- Reinforced Construction: Double-stitched seams handle the rigors of travel and game-day energy.
- Versatile Styling: The clean blackout look pairs easily with denim or tech-wear for a modern streetwear silhouette.
Size & Fit
- Regular athletic fit; order your standard size for a standard look.
- Size up if you plan on wearing this over a hoodie or heavy base layer for those chilly night games.

Care Instructions
Turn the garment inside out before washing. Machine wash on a cold, delicate cycle with mild detergent. Avoid bleach or heavy fabric softeners to protect the silicone ink. Air dry flat to keep the fabric structure in top shape.
Shipping & Returns
- Orders processed within 2-4 business days.
- Estimated delivery: 5-10 business days (location dependent).
- 30-day hassle-free returns on unworn, unwashed items.
Frequently Asked Questions
Will the screen-printed graphics crack after multiple washes?
No, the high-density silicone ink is cured to remain flexible and crack-resistant. By washing inside-out in cold water and skipping the dryer, these details will stay crisp for years.
Is this gear appropriate for an official MLB jersey collection?
Yes, this is a premium crossover piece designed for collectors. It blends professional quality standards with unique artistic collaboration elements perfect for any dedicated follower of high-end baseball uniforms.
How should I remove stadium stains like mustard or grass?
Spot-treat the area with a pH-neutral cleaner and a soft cloth. Gently dab the fabric to lift the stainβnever scrub directly over the art panels to ensure the print surface stays smooth.
Can I wear this during chilly night games?
Yes, the athletic cut is designed for layering. You can easily fit a hoodie or a base layer underneath without restricting your movement at the ballpark.



















