Buy 2 Fall Layers, save $10 + free ship
Every boat is built on a keel, the line down the center that keeps it steady. This one runs down your back.
The Keel Line Long Sleeve carries "MONTAUK" straight down the spine, finished with the Frequensea™ wave. Up front, our signature compass sits on the chest with our tagline.
It's simple intentionally. One clean line for the stretch of coast that always calls you back.
Soft, garment-dyed long sleeve tee (Comfort Colors® 6014, about 6.1 oz, 100% ring-spun cotton) with a lived-in feel made for cooler days on the coast. Substantial without feeling heavy, it’s an easy layer for breezy boat rides, beach walks, and shoulder-season weather.
Return to Your Signal™
2XL–3XL are priced slightly higher. Select a size to see the updated price.
Not sure on fit? Our size chart is your best friend, and you can always reach out with questions before you order—happy to help you land on the right size.
Every Frequensea piece is thoughtfully designed with attention to quality and detail. We want you to love what you receive. If something arrives damaged, misprinted, or incorrect, email us within 14 days and we’ll make it right.
Because each piece is made to order, we’re unable to accept returns or exchanges for size, fit, color, or design selection.
Every Frequensea piece is printed to order on carefully selected, quality apparel. From the softness of the fabric to the thoughtful details of our designs, we focus on creating something you'll love wearing for years to come.
Mix & match any 2 long sleeve tees or hoodies to save $10 + ship free.
Applies automatically at checkout. Extended sizes priced slightly higher.
Estimated arrival: Nov 13–Nov 18
Typically arrives in 7–10 business days. Holidays may extend delivery.
