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.
The Seakoff White and Black Long Sleeve Shirt delivers the visual punch of a double-layer outfit in one easy-to-wear piece. A clean white oversized body meets contrasting black long sleeves for a striking color-blocked silhouette that looks intentionally styled with zero extra effort. A minimal gothic-script chest logo on the front adds a subtle branded detail, while circular graphic prints on both rear sleeves give the back view equal presence.
Built for Everyday Street Style
Cut in a relaxed oversized fit with a classic crew neck, this long sleeve shirt moves comfortably through daily wear and seasonal transitions alike. The 100% cotton construction keeps things soft and breathable, making it as practical as it is eye-catching. Wear it with cargo pants and chunky sneakers for a complete streetwear look, or layer it under an open jacket to add dimension to your fit.
Design Details
Double-layer long sleeve construction with contrast black-and-white color blocking. Minimalist gothic chest logo print on the front. Circular graphic emblem on each rear sleeve. Woven label tag at the hem. Oversized streetwear silhouette in 100% cotton.
Size Guide
M: Length 29.5 in / Shoulder 20.9 in / Sleeve 24.75 in / Chest 46.5 in L: Length 31.1 in / Shoulder 21.6 in / Sleeve 25.5 in / Chest 49.25 in XL: Length 32.25 in / Shoulder 22.5 in / Sleeve 26 in / Chest 51.25 in
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.
