Natural fiber-reinforced composites paragraph (improve grammar question)

hello
i need to improve the grammer in the bold below please

Natural fiber-reinforced composites with their favourable properties of strength, toughness, high modulus, low-cost, low density make them an attractive area of study for material scientists. This coupled with the uniqueness of being an environmentally friendly option in (grammar) that the fibers can be obtained from renewable sources; make natural fiber-reinforced composites a material for the future. Similarly, polymer-nanoclay composites have been widely investigated for their significant improvement in modulus, impact strength, barrier properties, heat resistance and thermal stability.

thanks

Good morning!

OK, how about, "This, coupled with the distinctiveness of being an environmentally friendly option in that these fibers can be obtained from renewable sources, makes natural fiber-reinforced composites a sustainable material for the future."

Or,

"This, coupled with the uniqueness of being an environmentally friendly option, because these fibers can be obtained from renewable sources, make natural fiber-reinforced composites a material useful for the future."

I hope this helps!