Mint green collapsible fabric storage cubes are typically made from heavy‑duty nonwoven polypropylene fabric with reinforced cardboard panels for shape and support, and they include dual handles for carrying.
Common safety features include BPA‑free, PVC‑free, and phthalate‑free materials; some items note REACH compliance. Other frequently listed features are leak‑resistant seals and food‑safe plastics. Always check the product label or specification page for exact certifications.