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.
Our long sleeve jersey shirt makes an immediate statement with oversized old-English gothic lettering across the chest reading "HAVE MT99 GROWING." Two embroidered crest badges sit above the text, adding a heritage-inspired detail that elevates the overall look. The sleeve panels carry continuous gothic script running from shoulder to cuff, ensuring the design commands attention from every angle. Available in both black and white colorways.
Athletic Construction with an Edgy Edge
Built from a cotton-rich athletic blend, this long sleeve jersey shirt combines breathable mesh paneling at the front body with smooth contrast satin-finish panels across the shoulders, sides, and sleeves. The result is a relaxed, oversized silhouette with a V-neckline that draws directly from sports jersey tradition while fitting naturally into everyday streetwear rotation. The two-tone construction adds visual depth without compromising comfort.
How to Style It
Wear your long sleeve jersey shirt over a longline white tee, paired with baggy cargo pants and chunky sneakers for a full streetwear fit. The black version layers well under an open overshirt or coach jacket for cooler days. The white version works as a clean contrast piece against dark bottoms. Versatile enough for casual outings, concerts, or creative shoots.
Size Guide
M: Length 28 in / Chest 52¾ in / Shoulder 21¼ in / Sleeve 23⅝ in L: Length 28¾ in / Chest 54⅜ in / Shoulder 22 in / Sleeve 24 in XL: Length 29½ in / Chest 56 in / Shoulder 22⅞ in / Sleeve 24⅜ in
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.
