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.
A laid-back take on classic suiting fabric, this oversized plaid long sleeve shirt brings a Japanese streetwear sensibility to everyday dressing. The fine grid check pattern in muted tones keeps the look versatile, while the relaxed boxy silhouette makes it easy to layer over a white tee or wear open as a light outer shirt through spring and autumn.
Product Highlights
Fine grid check (plaid) woven fabric in a neutral black-and-white colorway
Oversized, boxy silhouette with dropped shoulders for a relaxed, contemporary fit
Classic point collar with a clean button-front placket
Long sleeves with buttoned cuffs for a polished finish
Lightweight construction suited to spring and autumn layering
Versatile styling — wear buttoned up or open over a crew-neck tee
Fit & Styling
This shirt is cut with an intentionally oversized, boxy frame. The dropped shoulders and generous chest measurement mean it sits comfortably loose across the torso without feeling shapeless. Pair it with straight-leg or cargo trousers and chunky sneakers for a relaxed streetwear look, or layer it unbuttoned over a fitted white tee as shown. If you prefer a cleaner silhouette, size down one; if you want maximum drape and layering room, stay true to size. Refer to the size chart for chest and shoulder measurements before ordering.
Product Details
Material: approximately 100% Cotton woven fabric. Available in sizes M through XXL. Size M measures 73 cm in length, 136 cm chest, 55 cm shoulder width, and 57.5 cm sleeve length. Each size steps up by approximately 2 cm in length, 4 cm in chest, 1 cm in shoulder width, and 1 cm in sleeve length.
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
73
136
55
57.5
L
75
140
56
58.5
XL
77
144
57
59.5
XXL
79
148
58
60.5
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.
