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 Ribbed Texture Long-Sleeve Tee is a wardrobe staple built for everyday wear. Its subtle rib-knit fabric adds quiet visual depth to an otherwise clean silhouette, giving it a more considered look than a standard long-sleeve tee. Available in charcoal and oatmeal, both colourways are versatile enough to anchor a wide range of outfits across seasons.
Relaxed Fit Built for Comfort
Cut with a relaxed drape and a clean crew neckline, this top sits comfortably without feeling oversized. The soft, lightweight construction makes it easy to wear throughout the day, whether layered under a jacket or worn on its own. Long sleeves and a straight hem keep the look neat and unfussy.
Easy to Style, Effortless to Wear
Pair it with tailored trousers for a smart-casual finish, or keep it casual with denim and sneakers. The minimal design means it works equally well as a base layer or a standalone piece. The muted tones and textured knit give it a subtle premium feel that suits both relaxed and put-together looks.
Size Guide
M: Shoulder 19¾ in / Chest 44⅛ in / Sleeve 23¼ in / Length 26 in L: Shoulder 20½ in / Chest 45⅝ in / Sleeve 23⅝ in / Length 26¾ in XL: Shoulder 21¼ in / Chest 47¼ in / Sleeve 24 in / Length 27½ in
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.