We wanted to create the perfect transitional layer for Spring, and we did just that. This new long sleeve is made with our Lassen Heavy Slub, so it's got great texture while still being super comfortable. It's perfect to wear on its own, under an overshirt — you get the gist. Meet our Lassen Heavy Slub. This all-star fabric is made from slub yarn, so it has a deep texture, while still being absurdly soft. Perfect for transitioning seasons, this heavyweight material has been garment-dyed for a broken-in, sun-faded look.