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 clean, understated navy overshirt built for transitional weather. This long-sleeve button-up features a structured stand collar with a contrasting navy plaid inner lining, a relaxed boxy silhouette, and a single chest patch pocket. The minimalist front placket and tonal white buttons give it a polished yet casual finish that works equally well as a light outer layer or a standalone shirt.
Product Highlights
Stand collar with contrast navy gingham inner lining — can be worn open or buttoned up for added coverage
Relaxed, oversized silhouette with dropped shoulders for a contemporary layered look
Single left chest patch pocket adds utility without cluttering the clean front panel
Full-length button placket with white shell-style buttons for easy on/off
Clean back yoke with a small loop tab at the collar for neat hanging and storage
Button cuffs with a subtle contrast detail visible at the sleeve hem
Fit & Styling
This shirt is cut with a generous, boxy fit — it sits wide across the shoulders and chest, making it ideal for layering over a lightweight knit or crew-neck tee. The dropped shoulder and relaxed body give it an overshirt feel rather than a traditional dress shirt. Refer to the size chart: size M measures 72 cm in length, 128 cm chest, 56 cm shoulder width, and 58 cm sleeve length. If you prefer a closer fit, consider sizing down. Style it open over a striped long-sleeve tee, or button it fully for a smart-casual workwear look paired with chinos or straight-leg trousers.
Product Details
Color: Navy. Available sizes: M, L, XL, XXL. Closure: Full-length button placket. Collar: Stand collar with plaid inner lining. Pocket: Single chest patch pocket. Estimated material: 65% Cotton, 35% Polyester. Care and exact composition should be confirmed with the supplier prior to publishing.
Size Guide
Use the measurements below as a guide and compare them with a similar item you own.
Size
Length (cm)
Chest (cm)
Shoulder Width (cm)
Sleeve Length (cm)
M
72
128
56
58
L
74
132
57
59
XL
76
136
58
60
XXL
78
140
59
61
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.
