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 ON79 Store Graphic Long-Sleeve Tee makes an immediate statement. The front features a striking red-outlined bubble-letter logo in blue and red, paired with a moody paragraph of small-print text beneath it. A detailed skeletal warrior illustration anchors the lower front, while large abstract letter graphics run boldly down both sleeves. A small snake patch detail sits near the left cuff, adding a final layer of edge to the overall design.
Oversized Silhouette Built for Everyday Wear
Cut in a relaxed, oversized fit, this long-sleeve tee layers effortlessly over joggers, cargo pants, or wide-leg denim. The ribbed crew neckline and ribbed cuffs give structure to the otherwise loose silhouette, keeping the look intentional rather than sloppy. The clean white colorway lets the graphic work do the talking while staying versatile enough to build outfits around.
Material and Construction
Made from 100% cotton, this tee offers a soft, breathable feel suited for all-day wear. The fabric holds its shape well across the oversized cut, and the print quality appears crisp and detailed across both front and sleeve graphics.
Size Guide
Size
Shoulder (in)
Chest (in)
Length (in)
Sleeve (in)
S
21 5/8
44 7/8
28 3/8
24
M
22 1/4
46 1/2
29 1/8
24 3/8
L
22 7/8
48
29 7/8
24 3/4
XL
23 5/8
49 5/8
30 3/4
25
XXL
24 3/8
51 1/8
31 3/4
25 1/4
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.
