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 Layered Long Sleeve Tee delivers the styled appearance of two separate pieces in one streamlined garment. A clean short-sleeve outer tee sits over contrast pinstripe long sleeves, creating a modern double-layer silhouette that looks intentional without the bulk. Available in heather grey and black, both colorways carry the same sharp, understated energy.
Design Details Worth Noticing
A minimal outline logo sits across the chest, keeping the branding subtle while adding visual interest. The crew neckline and raglan shoulder construction give the fit a relaxed, athletic shape that moves comfortably throughout the day. The contrast striped sleeves extend beyond the outer tee hem, making the layered effect visible and deliberate from every angle. Paint-splatter detailing adds a raw, artistic edge consistent with contemporary streetwear aesthetics.
Everyday Versatility, All-Season Styling
Made from a cotton-rich athletic blend, this tee offers a lightweight, breathable feel suited to year-round wear. The relaxed straight fit pairs easily with joggers, cargo pants, or denim. It transitions naturally from casual daywear to a layered evening look. Whether you are building a streetwear outfit or keeping things simple, this piece holds its own as a standalone statement.
Size Guide
M: Length 27⅛ in (69 cm), Chest 46 in (117 cm), Shoulder 20⅞ in (53 cm), Sleeve 23⅝ in (60 cm) — recommended for 160–170 cm, 45–60 kg. L: Length 28 in (71 cm), Chest 47⅝ in (121 cm), Shoulder 21¼ in (54 cm), Sleeve 24 in (61 cm) — recommended for 170–175 cm, 50–65 kg. XL: Length 28¾ in (73 cm), Chest 49¼ in (125 cm), Shoulder 21⅝ in (55 cm), Sleeve 24⅜ in (62 cm) — recommended for 175–185 cm, 60–75 kg.
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.
