whats the lightest mosy comfy saddle out there for xc !

Tomred

hi all, looking for a new saddle,was interested in the selle italia slr xc, any ideas or advice, want the ligtest n most comfortable ? weight very important, do crosscountry marathon races. on kula supreme xtr fox ritchey etc.
any help much appreciated!!
tomred ( hurrah, bring on wet winter spins )