Octo Manifesto Long Sleeve Performance Shirt

Big pink tentacles curl around a corked bottle bobbing in a sunset sea, and the scroll inside spells out the What The Fin Manifesto. Read every line, then go live it on a long day out on the water.

Moisture Wicking Technology

Our performance products keep you cool and dry every time you wear it, delivering superior moisture-wicking with fabrics that dry rapidly and maximize absorbency.

UPF 50+ Sun Protection

With UPF50+ technology, this shirt protects your skin against harmful UV rays, ideal for outdoor activities.

On Demand Product

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Size Guide