Browse all men's sponge fleece sweatshirts from The Seasteading Institute's Supporters Shop

• Ecostead Showcase

• TSI Shirt

• Let Freedom Float

• Seaweed Eater

• Other Fridge is the Ocean (white)

• My Other Fridge is the Ocean

• Freedom & Liberty First Seastead

• The First Seastead (white)

• The First Seastead (green)

• First Seasteaders Stop Arguing Start Seasteading

• Stop Arguing Start Seasteading (logo white)