Bra or Shimmel: For women, a sports bra made of a wicking polyester or polypropylene fabric is a good choice. Again, avoid cotton or cotton blends or you may end up with chafing and being soggy and clammy when you finish your walk.
Another option is a shimmel or a sports top/bra that covers your upper torso to provide an extra layer of insulation for very cold days.
Sports Bras
Undershirt: Men may want to wear a short or long-sleeved wicking undershirt. This should be of silk, polypropylene, or other wicking fabric.
Tights or Long Johns: For temperatures below 30 F, especially with wind, I like to wear a pair of tights under my walking pants. You can buy silk or polypropylene long john bottoms for this purpose. But a pair of winter-weight pantyhose or tights will also serve the purpose of adding another layer. Tights or pantyhose can also help prevent chafing and chapped skin on the thighs and calves.
