Adidas

F50 (adizero)

Weighing in at only 165 grams, the men's adidas F50 adizero™ TRX FG boots are more than just super-lightweight football boots. They step you into a SPRINTSKIN single-layer upper for excellent feel, with an internal sprint web inside for increased lateral and medial support, and a TRAXION® FG outsole for high-speed grip on firm pitches.


My thoughts is that these shoes are really light but after you get used to them it doesn't matter. Also to make these shoes really light the cut down on the padding so you need good touch with these shoes.
Predator

These adidas football boots were specifically designed to dominate on firm natural pitches. Fitted with a TRAXION® FG outsole, these adiPower PREDATOR® TRX FG boots step you into a super-durable Taurus full grain leather upper, a speedy sprint frame build and a smooth, precise kicking surface.


My thoughts is that these are nice shoes.  Not he best ones you can by for the money but they have decent touch so juggling is easer.  They are light but not as light as the F50