http://www.outsideonline.com/blog/outdoor-gear/footwear/la-sportiva-builds-the-lightest-four-buckle-touring-boot-ever.html

Link to outside story.

1,395g per boot. That is only 105g lighter than my twenty year old Tourlites, which are size 29.5

That’s the same as my 3 buckle F3’s.

A lot of folks around here are wearing these boots now.

http://www.pierregignoux.fr/France/Accueil.php

XP444 : 444 gr/shell size 255
add an inner: Bikini 120 gr/chausson

and that gives you 564gr/boot or 1140 gr the pair!