This underbed storage bag integrates high-quality three-layer composite non-woven fabric + PVC construction (odorless, foldable, breathable), 90L large capacity with space-saving dimensions, a transparent PVC window for easy item identification, reinforced double-stitched handles, durable stainless steel zipper closure, and foldable compact packaging-blending durability, storage efficiency, convenience, and dust/moisture protection to meet home, dorm, and seasonal storage needs