Nine of those are forwards while Ronan O'Gara and Peter Stringer are the sole backs with Brian Carney surprisingly omitted from the squad.
Forwards (18): Neil Best (Belfast Harlequins/Ulster); Rory Best (Belfast Harlequins/Ulster); Tony Buckley (Shannon/Munster); Leo Cullen (Blackrock College/Leinster); Simon Easterby (Llanelli); Jerry Flannery (Shannon/Munster); John Hayes (Bruff/Munster); Cian Healy (Clontarf/Leinster); Jamie Heaslip (Clontarf/Leinster); Marcus Horan (Shannon/Munster); Bernard Jackman (Clontarf/Leinster); Denis Leamy (Cork Constitution/Munster); Donncha O'Callaghan (Cork Constitution/Munster); Johnny O'Connor (Galwegians/Connacht); Mick O'Driscoll (Cork Constitution/Munster); Malcolm O'Kelly (St.Mary's College/Leinster); Alan Quinlan (Shannon/Munster); David Wallace (Garryowen/Munster).
Backs (15): Tommy Bowe (Belfast Harlequins/Ulster); Girvan Dempsey (Terenure College/Leinster); Gordon D'Arcy (Lansdowne/Leinster); Gavin Duffy (Galwegians/Connacht); Luke Fitzgerald (Blackrock College/Leinster); Shane Horgan (Boyne/Leinster); Robert Kearney (UCD/Leinster); Geordan Murphy (Leicester); Brian O'Driscoll (UCD/Leinster); Ronan O'Gara (Cork Constitution/Munster); Eoin Reddan (Wasps); Jonathan Sexton (St.Mary's College/Leinster); Peter Stringer (Shannon/Munster); Andrew Trimble (Ballymena/Ulster); Paddy Wallace (Ballymena/Ulster)