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 around a quarter-zip mock neck and a subtly textured slub-knit fabric. Available in classic Black and warm Oatmeal, this relaxed-fit piece sits at the intersection of casual streetwear and everyday smart-casual dressing — easy to layer or wear on its own across spring and autumn.
Product Highlights
Quarter-zip silver-tone metal zipper at the mock neck for adjustable ventilation and a refined detail
Subtle slub-knit texture adds visual depth without bold graphics or branding
Relaxed, slightly boxy silhouette with clean dropped shoulders for a contemporary streetwear feel
Ribbed mock-neck collar provides structure and a polished finish
Long sleeves with clean, unadorned cuffs for a versatile, layerable look
Available in two versatile colourways: Black and Oatmeal
Fit & Styling
This shirt is cut with a relaxed, slightly oversized fit — the size chart shows a chest of 112 cm for M, 116 cm for L, and 120 cm for XL, making it generous across the chest and shoulders. It works well worn alone over slim trousers or jeans, or layered under an open overshirt or light jacket. The neutral colourways pair easily with most bottoms. For a fitted look, size down; for a true relaxed streetwear silhouette, wear your standard size.
Product Details
Fabric composition: approximately 60% Cotton, 40% Polyester — a blended slub-knit jersey that provides a lightweight, breathable hand feel with light stretch and shape retention. The garment features a silver-tone quarter-zip closure, a ribbed mock-neck collar, and long sleeves. Available in sizes M, L, and XL. Brand label: BLACKEYS.
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
66
112
51
59
L
68
116
53
60
XL
70
120
55
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.
