Thickness
The Kirby Glove is actually thinner than the conventional hand glove.  The Kirby Glove is .75mm while the conventional glove is between 4 to 5 mm in thickness.



Golf Club wraps, The Kirby Glove




Weight
A 5 iron was placed on a swing weight scale before and after the Kirby Glove was added and there was no measurable difference noted.  The Kirby Glove is very thin and light.