3M DBI SALA ExoFit NEX Ultra Compact Chest Ascender 11504323M DBI SALA ExoFit NEX Compact Chest Ascender is an add on which is now available to order as a retro fit kit. It can be added to your existing 3M DBI SALA ExoFit NEX Rope Access & Suspension Harness. Keep protected and comfortable when working at height with 3M DBI SALA ExoFit NEX Chest Ascender. Compact chest ascender creates less deflection of the webbing, increasing comfort in suspension Specifications: Body Belt: Yes D ring Placement: Back,