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 Open Knit Polo Tee reimagines classic summer knitwear with a refined, open-knit texture that keeps you cool without sacrificing style. Made from 100% cotton, the semi-sheer mesh-like fabric delivers genuine breathability and a lightweight feel that works from midday heat to evening outings.
Clean Details, Relaxed Silhouette
A classic polo collar and button placket add structure to the relaxed fit, while ribbed cuffs and a ribbed hem finish give the shirt a polished, intentional look. The short sleeves and airy construction make it an effortless warm-weather layer whether worn alone or over a fitted undershirt. Available in a versatile sand beige and a sharp all-black colorway to suit any wardrobe.
How to Wear It
Pair with tailored shorts and loafers for a smart-casual look, or wear over swim trunks for a resort-ready outfit. The minimal aesthetic makes it easy to dress up or down. Available in sizes S through XL with a consistent relaxed fit across the range.
Frequently Asked Questions
Is this shirt see-through?
The open-knit texture is semi-sheer. For full coverage, we recommend wearing a fitted undershirt underneath.
What is the fabric composition?
This polo is made from 100% cotton.
Size Guide
Size (in./cm)
Length
Chest
Shoulder
Sleeve
S
25 5/8 (65)
20 1/2 (52)
17 3/4 (45)
9 (23)
M
26 1/4 (66.8)
21 1/4 (54)
18 1/8 (46)
9 3/8 (23.8)
L
26 3/4 (68)
22 (56)
18 1/2 (47)
9 3/4 (24.6)
XL
27 3/8 (69.5)
22 7/8 (58)
18 7/8 (48)
10 (25.4)
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.
