An exclusive run of our signature Blanket Shirt made, in part, from SEAWEED. Outerknown is the world's first brand to debut and sell clothing crafted with Kelsun™ alginate fiber. Derived from seaweed, Kelsun is blended with natural fibers to reduce our need for arable land, pesticides, and fertilizer. This is the same lofty twill weave texture you love in our Blanket Shirts woven just a tad lighter in a blend of 70% Regenerative Organic Certified® Cotton and 30% Kelsun™ alginate fiber, which reduces our need for arable land, pesticides, and fertilizers.     

The Kelsun™ Universal Blanket Shirt is a unisex garment.

Men order true to size for a classic/relaxed fit.
Women order true to size for an oversized fit. Order a size down if you want a truer fit to body/classic.

Sustainability and innovation being at the forefront of everything we do, the original Blanket Shirt just got even better.

Feels the same as our original Blanket Shirt, but a little bit lighter.

Endlessly versatile and always essential, you'll wear this layer for years to come.

Your new 365 layer, light enough to wear all year round.

Crafted from a soft, lofty organic cotton twill and Kelsun™ alginate fiber derived from sea kelp with buttons made from nuts.

Features chest pockets with button flap closure.