Half the weight of a classic steel toe boot
A classic steel toe boot weighs close to two pounds. Shraks weighs about 15 oz.
On a warehouse floor you easily walk 10,000 steps a shift, so you lift close to 9,000 pounds less by the end of the day. Every 3.5 oz on your foot adds up to about 2,200 pounds lifted per shift.
They just left the weight out.