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 Inserror 78 Baseball Graphic Shirt delivers a bold sports-meets-streetwear aesthetic built for warm-weather dressing. Classic navy and white pinstripes run the length of the body, while contrast navy raglan sleeves and a point collar give it an authentic varsity jersey feel. A large embroidered script logo across the chest and oversized number graphic on the back make this shirt impossible to overlook.
Playful Details That Set It Apart
Embroidered baseball and bat patches decorate both sleeves, adding a fun, textured dimension to the design. A cheerful Mickey Mouse embroidery holding a baseball bat sits on the lower front, paired with a woven American flag patch near the hem. The back features bold block lettering and the number 78 for a classic athletic finish. Buttons run down the front placket for easy on and off.
Relaxed Fit for Effortless Outfit Building
Cut in a relaxed short-sleeve silhouette, this shirt layers easily over a plain white tee or works as a standalone warm-weather top. Pair it with cargo pants, joggers, or denim shorts for a casual streetwear look. Made from 100% cotton for a comfortable, breathable feel throughout the day. Available in sizes M, L, and XL.
Frequently Asked Questions
Is this shirt true to size?
This shirt is designed with a relaxed, oversized fit. Please refer to the size guide measurements for chest, length, sleeve, and shoulder dimensions before ordering.
Is this an officially licensed Disney product?
This product features Mickey Mouse graphics. Please check the product listing or contact us directly for licensing details.
Size Chart
Size (in./cm)
Chest
Length
Sleeve
Shoulder
M
24 3?? (62)
28 3?? (73)
9 ???? (24)
23 ??? (60.5)
L
25 1?? (64)
29 1?? (75)
9 ??? (25)
24 3?? (61.5)
XL
25 ??? (66)
30 3?? (77)
10 1?? (26)
24 ??? (62.5)
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.
