SeaWeev is a material unique to UnderAir. The fiber is derived from a specific type of kelp that produces a natural antimicrobial material, Lanosol. It's soft, absorbs odors and feels amazing. See how it's made on our SeaWeev page.
We used the power of sound to fuse the elastic band to the underwear. As a result there is not stitching to irritate your waist. This process is worth it as it gives your skin unrivaled comfort.
Made from Beech trees this amazing material is as soft as clouds. UnderAir made it even softer by increasing the gsm weight that we use. This means a denser weave and a smoother feel.