Experience a new dynasty of double-sleeving! Inner sleeves in well-known Katana quality! Ultimate Guard is proud to announce the expansion of its popular Katana Sleeves family. Alongside our already successfully established Standard and Japanese Sized sleeves, we are now introducing the Katana Inner Sleeves Japanese size. Made in the tradition of pristine Japanese craftsmanship, the Katana Inner Sleeves offer you an outstanding double-sleeving experience. Long lasting lifespan and durability Inner sleeves for additional protection Acid free, no PVC Impeccable clarity Made in Japan