Alloy Slim V 140 – 190cm 160 – 210cm Realizing the potential and success of the original V GRIP. Aeron have taken a giant leap that may very well make the Slim V the most popular Alloy boom in the Aeron range.The V Profile has been reduced and is less aggressive than its predecessor this we feel will appeal to more users. The Slim V (SV) come standard with the new Alloy Casted Lever , new forged wide profile tail ends and new tail cleat housings.