substantially hermetically sealed by the polymer coating layer. For example, the hybrid/composite shell may comprise organic polymer latex particles or derivatives thereof blocking one or more pores of a shell of the primary capsule. Advantageously, the capsule is capable of containing cargoes/actives without substantial undesirable leakage. Therefore, in various embodiments, the hybrid/composite capsule remains substantially intact/stable/non-brittle/devoid of rupture/leakage (i.e. does not break) under high vacuum, e.g. during SEM analysis or when subject to high mechanical forces/stress or high shear. For example, when the hybrid/composite capsule is substantially resistant to breaking under scanning electron microscopy (SEM) vacuum conditions, it will be evident from the SEM images of the capsule. Advantageously, the one or more cargoes present within the capsule may be beneficially isolated/protected from an external environment for example under ambient conditions such as when the capsule is in storage. The hybrid/composite shell may comprise an inner layer substantially made up of an inorganic material optionally selected from one or more of silica, zirconia, titania and combinations thereof, and an outer layer that is substantially a polymer layer derived from organic polymer latex particles or derivatives thereof. In various embodiments, the organic polymer coating comprises poly-N- isopropyl acrylamide (PNIPAM), poly-methyl-methacrylate-co-poly-styrene-co- polyethyl-hexyl-acrylate-co-poly-acrylic acid, poly caprolactone (PCL), poly valerolactone, poly butyrolactone, polyurethane, polyamide, polyacrylic acid or combinations thereof and the at least one primary capsule comprises a silica capsule, a zirconia capsule, a titania capsule or combinations thereof. In various embodiments, the outer layer is a direct coalesced form/product of polymer latex particles and is substantially similar in chemical composition with the polymer latex particles. In various embodiments, the hybrid/composite shell does not consist of double-layered silica shell.