Figure 5-5. — Spread open boots. 



rather tight casing- and do not allow perspiration to evaporate. 

 Hence, shoes with linings such as felt or fleece that cannot be 

 removed for airing or washing should not be worn. 



Many types of arctic footwear have been used with success. 

 When leather boots are worn, they should be one or two sizes 

 larger in both width and length than for ordinary wear. They 

 should be large enough to be worn with i/i-i^^ch insoles and two 

 or three pairs of light wool socks without binding the feet. The 

 need for such large shoes is hard for an inexperienced man to 

 understand, but it is very real. Leather boots must be carefully 

 broken in. They are not suitable for temperatures less than 

 about 20° F. 



Mukluk boots, copied from the Eskimo, have a dry-tan leather 

 or rubber sole, and canvas uppers extending up to just below the 

 knees. Not being waterproof, they are not adapted for use in 

 wet and slushy snow. However, they are excellent in extreme 

 cold. Lace them so they do not fit tightly around the calves. 



Shoepacs are a serviceable type of boot for use in wet snow. 

 They are laced boots with rubber feet and leather uppers. They 

 are not suitable for cold weather and should not be used in tem- 

 peratures below zero. Even above 0° F., socks and insoles must 

 be thoroughly dry in order to keep the feet warm. 



The best footwear for continuously exposed occupations or on 

 the trail at extremely low temperatures is an Eskimo mukluk 

 made of caribou skin. 



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