These are Reebok Womens 8.5W Blue Purple Yellow Composite Toe Work Sneakers --NWT. 

NWT
"non ferrous elastomeric material"
work sneakers
purplish blue and yellow in color
COMPOSITE TOE CAP = like steel toe but "light weight and will not conduct heat, cold or electricity " (tag)
"meets or exceeds" ASTM F2413 standard for protective footwear
ESD dissipates static electricity
XTR Brand composite toe cap - extra toe room and comfort "as strong as steel"

"This Reebok ESD Footwear allows static electricity to be dissipated from the wearer's body into the walking surface to prevent static electricity build up. These shoes are to be used in areas where the generation of static electricity could harm electrical equipment, circuit board assembly, the manufacture of computer chips or paint application processes."

"Security Friendly" This Reebok footwear contains no metal for security jobs that require working around metal detectors, and manufacturing jobs that require non-scratch eyelets."

usa womens 8.5W
width = W

model RB457