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, minimal long-sleeve top built for effortless layering. Featuring a mock crew neckline with a short hidden zipper at the center front, this slim-fit men's top delivers a refined, understated look in solid black or slate blue. The structured silhouette and smooth fabric make it equally suited as a standalone piece or as a base layer under outerwear.
Product Highlights
Mock crew neckline with a concealed short zip at the center front for easy on/off
Slim, body-skimming fit that works as a base layer or standalone top
Clean solid colorway in Black and Slate Blue — no logos or graphics
Long sleeves with a neat, unribbed cuff for a modern, tailored finish
Slightly cropped hem with a straight cut for a contemporary silhouette
Available in M through XXL with detailed size measurements provided
Fit & Styling
This top is cut slim and close to the body, making it ideal for layering under a structured jacket, overcoat, or bomber. The mock neck and hidden zip add subtle detail without bulk. Wear it tucked into tailored trousers for a smart-casual look, or pair it with joggers or straight-leg jeans for a relaxed but polished outfit. The cropped length sits at the hip, working well with high-waisted bottoms. Refer to the size chart: size M measures 62 cm in length, 96 cm chest, 45 cm shoulder width, and 68 cm sleeve length.
Product Details
Fabric composition: approximately 88% Polyester, 12% Spandex — a smooth, slightly stretchy woven-knit blend that holds its shape and resists wrinkling. Available in Black and Slate Blue. Sizes M, L, XL, and XXL. Mock crew neckline. Short hidden center-front zipper. Long sleeves. Straight hem. Slim fit.
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
62
96
45
68
L
64
100
46
69
XL
66
104
47
70
XXL
68
108
48
71
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.
