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.
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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.
This men's striped long sleeve shirt brings American varsity energy to an everyday polo silhouette. Built on a bold black-and-white horizontal stripe base, it features a contrast solid collar, two-button placket, and ribbed cuffs. The front is loaded with embroidered and appliqué graphics — a large denim-fabric "21" number patch, cursive "Mafa Vintage" script, "Feel Alive" slogan, embroidered badge patches, and gold "Estd. 0230" lettering — giving it the layered look of a collector's rugby shirt.
Product Highlights
Classic horizontal stripe pattern in black/white or white/black colorways with a solid contrast collar
Large denim appliqué number "21" patch as the centrepiece graphic
Multi-technique embroidery: cursive script, slogan text, badge patches, and star details
Two-button polo placket with ribbed cuffs for a structured finish
Relaxed, oversized fit — generous chest and shoulder measurements suit a boxy, streetwear silhouette
Available in two colorways: Black base and White base
Fit & Styling
The cut is intentionally oversized and boxy, sitting comfortably across the chest and shoulders with a dropped hem. Size M measures 118 cm chest and 59 cm shoulder width, making it ideal for a relaxed streetwear layering piece. Wear it open-collar over wide-leg trousers or cargo pants, or layer under an open overshirt. The graphic-heavy front works best untucked. Refer to the size chart: M fits chest up to ~118 cm, L up to ~122 cm, XL up to ~126 cm.
Product Details
Material: approximately 95% Cotton, 5% Elastane jersey fabric with denim appliqué panel. Long sleeve polo shirt with spread collar, two-button placket, and ribbed knit cuffs. Front features embroidered varsity graphics including denim number patch, multi-colour embroidered script, and woven badge patches. Available in Black stripe and White stripe. Sizes M, L, XL.
Size Guide
Use the measurements below as a guide and compare them with a similar item you own.
Size
Length (cm)
Chest (cm)
Shoulder (cm)
Sleeve (cm)
M
69
118
59
57
L
71
122
60
58
XL
73
126
61
59
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.
