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 black and white t shirt blends sport-inspired design with everyday wearability. The front features striking oversized typography alongside clean horizontal stripe graphics, while the back carries a minimal branded print across the upper yoke. Three bold white stripes run along each sleeve, giving this black and white tee an unmistakable athletic edge that transitions effortlessly from the gym to the street.
Lightweight Comfort Built for Movement
Crafted from premium performance mesh fabric, this t shirt delivers a breathable, lightweight feel that keeps you comfortable throughout the day. Subtle piped seam accents run along the sides, adding structure and a polished finish to the relaxed silhouette. The raglan-style sleeves allow for a full range of motion, making this tee as functional as it is stylish.
Versatile Styling for Any Occasion
Whether you are heading to a workout, running errands, or meeting friends, this black and white t shirt pairs easily with joggers, shorts, or denim. The oversized fit makes it a versatile wardrobe staple. Available in sizes M through XL to suit a range of builds.
Size Guide
M: Length 28 in / 73 cm, Chest 48 in / 124 cm, Shoulder 21 in / 54 cm, Sleeve 7 in / 20 cm L: Length 29 in / 76 cm, Chest 50 in / 128 cm, Shoulder 22 in / 56 cm, Sleeve 8 in / 21 cm XL: Length 31 in / 79 cm, Chest 52 in / 132 cm, Shoulder 22.5 in / 58 cm, Sleeve 8.5 in / 22 cm
Size Guide
Size (in./cm)
Length
Chest
Shoulder
Sleeve
M
28 (73)
48 (124)
21 (54)
7 (20)
L
29 (76)
50 (128)
22 (56)
8 (21)
XL
31 (79)
52 (132)
22 (58)
8 (22)
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.
