Figure 5-6. — Sleeping on fir boughs. 



All arctic footwear, regardless of type, should be worn with 

 insoles. Insoles can be made of felt, burlap, or fur. A good 

 substitute is dry grass found throughout the Arctic. Pack the 

 grass not only in the bottom of the boot as an insole but also around 

 the foot for additional insulation. Insoles absorb moisture from 

 the feet and provide additional insulation between foot and ground. 

 This extra insulation is necessary because the socks become com- 

 pressed under the weight of the body, with reduction in their 

 ability to hold air in their fibers. 



Several types of socks have been found suitable. They may 

 be of the ordinary knitted variety or made out of blanket cloth 

 in a design similar to that of a baby's bootee. Some men find 



Figure 5-7. — Mukluks. 



168 



