Why does a raincoat not get wet in the rain?

(N/A) The angle of contact between water and the material of the raincoat is obtuse. Because the angle of contact is greater than $90^{\circ}$,the cohesive forces between water molecules are stronger than the adhesive forces between water and the raincoat material. Consequently,the water does not spread over the surface and instead forms droplets,preventing the raincoat from getting wet.