Size of the material defines its surface area, related functionality, and associated processing, for example, potato chips merely take 10 minutes to fry, whereas it is nearly impossible to completely fry the whole potato. Because of the high surface area in smaller-sized potato chips, the whole processing chain and functionality is drastically varied. The same effect is observed in daily life materials, for instance, finer textile fibers offer larger surface areas hence faster wicking and sweat evaporation are observed. Similar to the effectiveness of finer fibers at a micro level, the functionality of materials at the “nano/quantum scale” is manifold higher. Nano-materials are nearly a thousand times smaller than micro-fibers and they find applications beyond the imaginative extremes. For instance, nano-porous membranes are employed in water proof breathable textiles; where the nanopores allow the body moisture to come out, whereas water droplets cannot pass through. Here, the pores of the membranes are comparable to the size of water molecules in the vapor state, hence only vapors can pass through. Whereas, liquid water is blocked to pass through, thus creating the blockage of liquid water from outside. Most of these technologies have amazing science at the lab-scale; however, the maturity of these “SMALL” technologies can now replace the existing technologies at a commercial scale.  To this end, we will highlight the areas where nano-textiles can compete with conventional textiles at a commercial scale.