Worldwide Shipping Available Orders are processed within 1–3 business days and shipping costs are calculated at checkout. Tracking information will be sent once your order has been dispatched.
Estimated Shipping Times Estimated delivery times vary by destination:
USA & Canada: 7–12 business days
Germany & UK: 3–9 business days
Europe: 5–12 business days
Asia Pacific: 10–20 business days
Australia: 8–15 business days
Typical delivery times are 3–12 business days, depending on the destination. Please note that actual delivery times may vary due to customs, carrier delays, or peak shipping periods.
Shipping Protection Shop with confidence — every order is covered by shipping protection from dispatch to delivery. In the event of loss or theft, we offer a full refund or complimentary reshipment.
Shop with confidence — we offer a 30-day money-back guarantee and accept returns within 30 days after delivery for eligible items that are unused, in their original packaging, with tags attached. If your item arrives damaged, defective, or incorrect, please contact us and we’ll work with you to make it right.
For quality-related issues or shipping mistakes on our side, we’ll cover the return shipping cost. Approved refunds are issued to your original payment method within 1–3 business days after inspection.
The Seakoff '09' Short-Sleeve Mesh Jersey takes authentic American football design and translates it into a versatile everyday streetwear piece. Bold oversized '09' graphics dominate both the front and back, while varsity-style logo patches and sleeve number details add layers of athletic character. Available in black, white, navy, and green, every colorway delivers a distinct look with the same confident energy.
Breathable Mesh Construction
Made from 100% polyester mesh fabric, this jersey is built to keep you comfortable whether you're wearing it to a game, layering it over a long-sleeve tee, or styling it as a statement top on its own. The open mesh weave promotes airflow, making it a go-to choice across seasons. The relaxed boxy fit and V-neckline give it that authentic sports jersey silhouette without sacrificing everyday wearability.
Details That Set It Apart
Beyond the large chest number, the jersey features a shield-shaped '09' emblem at the chest, embroidered 'Growing' script, circular logo patches on the chest and sleeves, and a brand tag at the back collar. The back view showcases a 'GROWING' name bar above the number, completing the full varsity jersey aesthetic. Every detail is designed to read as premium and intentional, not costume.
Size Guide
M: Length 26.8 in / Chest 52 in / Shoulder 22.8 in / Sleeve 9 in L: Length 28 in / Chest 53.5 in / Shoulder 23.2 in / Sleeve 9.8 in XL: Length 28.7 in / Chest 54.3 in / Shoulder 23.6 in / Sleeve 9.8 in
Size Guide
Size (in./cm)
Length
Chest
Shoulder
Sleeve
M
26 (68)
52 (132)
22 (58)
9 (23)
L
28 (71)
53 (136)
23 (59)
9 (25)
XL
28 (73)
54 (138)
23 (60)
9 (25)
How to Find Your Perfect Size — Every Time
How to Find Your Perfect Size — Every Time
Struggling to pick a size online? Here's a simple trick: instead of guessing, use a piece of clothing you already own — and love the fit of — as your reference point.
Step 1: Pick Your Reference Item Think of a T-shirt you've bought before that fit you perfectly. Find that order and pull up its size chart.
Step 2: Focus on Two Key Measurements For streetwear-style tees, two numbers matter most:
Chest width— too narrow and it'll feel tight
Length— too long and it'll look sloppy
💡 Tip:Size charts sometimes list "Chest" as theflat-lay widthinstead of the full circumference. Here's how to tell the difference:
Large number(e.g., 49in / 124cm+) → likely the actual chest circumference
Small number(e.g., 24in / 62cm) → likely the flat width (garment laid flat and measured edge to edge)
Step 3: Note Your Ideal Numbers Write down the chest and length measurements from your best-fitting shirt. Care about sleeve length or shoulder width too? Note those down as well.
Step 4: Match to Our Size Chart Now check Seakoff's size chart and pick the size whose measurements are closest to your notes. That's it — no more guessing.
Works for Everything This same method applies to hoodies, sweaters, jackets, and more. Do it once, and you'll be able to shop confidently, anywhere — every time.
