Underwear

I bought 2 new pairs of underwear last Monday. These 2 new undies are the best undies i wear so far in my life. Its is so damn comfortable, its absorbs sweats very well and it will not get tighten when its wet with sweat. For ppl like me who sweats a lot (take a microscope and probe my skin, i swear you will see lots of running water tap) like me, i used to have the skin rash due to the underwear lining rubbing against your skin whenever i walk a long distance sweating, and its very painful. So, i purchased these pairs based on the design and color. I wore it for the first time today and by lunch time i got so excited i call JP, my bf to tell him about it. Its crazy i know but its like wearing feathers and cottons. He asked me to check the material and it turned out to be 50% cotton, 45%modal, 5% spandex. What the fuck is modal and spandex?. I was just gigling to myself imagining that during my next purchase , i will be asking the promoter " Do you have underwear which is made of 50% cotton, 45%modal, 5% spandex " :P