Most items are shipped factory direct and therefore, a standard shipping applies to each order by manufacturer.  This fee applies regardless of the number of items you purchase by that manufacturer.

Manufacturer specific shipping fees are shown below:

Carhartt: $15.95
Helly Hansen: $15.95
Danner: $15.95
Wolverine: $9.95
Blaklader: $15.95
DriDuck: $15.95

Examples: 

2 pair Carhartt pants & Carhartt work jacket: $15.95
1 Carhartt coverall and 1 pair Danner boots: $30.90