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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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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 blue and white striped long sleeve shirt brings a relaxed Japanese streetwear aesthetic to a classic woven silhouette. Vertical pinstripes run the full length of the shirt, while bold red script embroidery across the chest and back yoke adds a high-street edge. Dual chest patch pockets, embroidered cuff lettering, and a clean point collar complete the look.
Product Highlights
Vertical pinstripe pattern available in blue/white, black/white, and blue colorways
Bold red script "Isseyite" embroidery on chest and large back yoke
Additional embroidered text detail on sleeve cuffs
Dual chest patch pockets for a utilitarian streetwear touch
Relaxed oversized fit with a point collar and full button placket
Suitable for spring and autumn layering over tees or worn open as a light overshirt
Fit & Styling
Cut in a boxy, oversized silhouette that sits comfortably on the shoulders and through the body. The relaxed fit makes it easy to wear tucked or untucked. Pair with slim trousers or straight-leg denim to balance the volume. Works equally well as a standalone shirt or layered open over a plain tee. The embroidered back graphic makes it a statement piece when worn as an overshirt. Refer to the size chart: M measures 72 cm length, 120 cm chest, 54 cm shoulder, 56 cm sleeve; L measures 74 cm length, 124 cm chest, 56 cm shoulder, 57 cm sleeve; XL measures 76 cm length, 128 cm chest, 58 cm shoulder, 58 cm sleeve.
Product Details
Fabric: 100% Cotton woven poplin. Construction features a full button-front placket, point collar, long sleeves with buttoned cuffs, and two open chest patch pockets. Embroidery appears on the left chest, full back yoke, and both cuffs. Available in three stripe colorways: Black/White, Blue/White, and Blue. Sizes available: 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
72
120
54
56
L
74
124
56
57
XL
76
128
58
58
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.
