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.
Vintage-Inspired Streetwear, Refined for Everyday Wear
The White Long Sleeve Button Up Shirt brings together a clean vertical green pinstripe pattern and a bold cursive chest graphic for a look that sits comfortably between classic baseball heritage and modern streetwear. The oversized relaxed silhouette gives it an effortless, laid-back feel that works just as well styled open over a tee as it does buttoned up on its own.
Design Details Worth Noticing
Crafted from 100% cotton, this shirt features a structured classic collar, long sleeves with buttoned cuffs, and a curved hem finish that adds a polished edge to the relaxed fit. An embroidered patch badge sits on the left sleeve, and a woven label detail at the lower hem adds a premium streetwear finishing touch. The tonal green pinstripe on white keeps the palette versatile and easy to build outfits around.
How to Style It
Wear it unbuttoned over a white or black graphic tee with straight-leg denim and clean sneakers for a casual weekend look. Alternatively, button it up fully and tuck it loosely into wide-leg trousers for a more intentional, fashion-forward outfit. The neutral colorway makes it a reliable layering piece across seasons.
Size Guide
S: Length 28⅜ in / Shoulder 21⅝ in / Chest 50⅜ in / Sleeve 23 in M: Length 29⅛ in / Shoulder 22 in / Chest 52 in / Sleeve 23⅝ in L: Length 29⅞ in / Shoulder 22⅜ in / Chest 53½ in / Sleeve 24¼ in XL: Length 30¾ in / Shoulder 22⅞ in / Chest 55⅛ in / Sleeve 24¾ 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.
