SIDI Aria Gore Tex Boots Size:45 Model From year To Year K 207674 Model From year To Year 400 LSE & LC4 enduro 1997 2001 600 LC4 enduro 1991 1993 600 LC4 MX 1990 1992 620 EGS E Adventure 1998 1998 620 LC4 Duke 1995 1998 620 LC4 enduro 1990 1998 620 LC4 SX 1995 1998 620 LSE 1997 1998 625 LC4 SC 2002 2002 625 SMC 2005 2006 625 SXC 2003 2006 640 Duke & 640 LC4 (SM) 1997 2006 640 LC4 ENDURO 2000 2005 640 LC4 ENDURO Adventure R 1999 2007 640 LC4 SUPERMOTO 1999 2006 660 SMC 2003 2004 660 SMC 2005 2006 690 Duke R 2008 2021 690 Enduro R 2019 2021 690 Enduro improve handling through sharp turns Breathability and permeability in a single boot built by pursuing a single goal: to give excellent character and comfort low cut ready boot