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 Mafaerror Starline Performance Jersey brings sharp sport-inspired style to your everyday wardrobe. Featuring a striking contrast panel construction in light blue or cream, bold star graphics across the shoulders, and a classic number 9 chest print, this jersey commands attention whether you're on the move or keeping it casual. The V-neck collar and clean silhouette give it a versatile edge that works just as well off the field as on it.
Breathable Mesh Fabric for All-Day Comfort
Crafted from a cotton-rich athletic blend with breathable mesh fabric throughout, the Starline Jersey keeps you comfortable from morning to night. The lightweight construction allows for easy layering, while the relaxed fit sits comfortably across the chest and shoulders without restricting movement. Dark contrast panels run along the sides and sleeves, adding structure and a premium athletic finish.
Style It Your Way
Pair this jersey with cargo shorts and sneakers for a sport-casual look, or layer it over a long-sleeve tee for an elevated streetwear fit. Available in sky blue and cream colorways, each featuring matching dark navy contrast detailing and the Mafaerror Gate Nine branding across the chest. A standout piece for fans of retro athletic aesthetics and contemporary street style.
Size Guide
M: Length 28 in / 71 cm | Chest 23.25 in / 59 cm | Sleeve 16.5 in / 42 cm L: Length 28.75 in / 73 cm | Chest 24 in / 61 cm | Sleeve 17 in / 43 cm XL: Length 29.5 in / 75 cm | Chest 24.75 in / 63 cm | Sleeve 17.375 in / 44 cm
Size Guide
Size (in./cm)
Length
Chest
Sleeve
M
28 (71)
23 1/4 (59)
16 1/2 (42)
L
28 3/4 (73)
24 (61)
17 (43)
XL
29 1/2 (75)
24 3/4 (63)
17 3/8 (44)
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.
