mtrlbiker
Finding good cold weather gear is about looking around, and experience. This fall I found a really good pair of tights for cool weather at Cosco, of all places, at a great price, to boot. Shops that specialize in active outdoor clothing are good places to look for clothing to wear on the bike, but not the only place. I found a pair of gloves that I use for mountain biking in cool weather at Home Depot. They have padded knuckles to protect me from tree branches, and padded palms, just like cycling gloves at a fraction of the price of cycling specific gloves.

Jimmy S
Biking specific stuff is designed more for looks than keeping you warm. Check out what they have at local bike shops anyway. She might very well like a nice set of wool thermals as a base layer. She can put the bike stuff over it, still look snazzy, and be warm. Wool is far and away the best base layer.

Lakshmi
to avoid flu make sure you drink warm water and wrap up well even wear cotton socks and abstain from cold food. resource: HealthDump.com