STEEL TOE, maybe composite, but doubtful. "Sweat Resistant" stamped inside. I believe these are Union Made in 1976 or about. LightTread TufGum on bottom.

I beleive this say HY-TEST Brand. VINTAGE '76 LEATHER HARNESS BIKER WORK BOOTS OIL RESISTANT SOLE Cognac US 10.5 W

VINTAGE Hytest 76 BROWN LEATHER HARNESS BIKER CAMPUS BOOTS.
SIZE 10.5 EEE  Tag reads USAS Z41.1 1967/75
Uppers are dark brown thick leather with harness ring "76 and straps. Pull on boots, no zippers. Soles Tufgum oil resistant.
Approximate Measurements:
BOTTOM LENGTH OF SOLE: 12 1/4".  WIDTH OF SOLE: 4 5/8"
 SHAFT HEIGHT:  12" inches.  Heel height 1.5".
 Good Pre-owned condition - these boots are made to last a lifetime. 
  Leather is in great condition.  NO holes or tears.  Some use scuffs.

 GOOD USED CONDITION - SEE PICTURES