With proven thermal effectiveness, measured to a 0.61 tog rating, Heat Holders Microfleece Base Layer Bottoms are the key to a layered clothing system. These leggings are made from a specially developed microfleece with a heat retaining brushed inner and excellent warmth to weight ratio.
These close-fitting warm base layer bottoms are also highly breathable, allowing moist air to escape and keeping the wearer dry and warm. Heat Holders Microfleece Base Layer Bottoms have an innovative multi-directional stretch knit, assembled using flatlocked seams, minimising seam bulk for a non-chafe fit that lays flat and moves smoothly on the skin.