Sunbank, a brand name of Esterline Connection Technologies, manufactures a very wide range of circular and rectangular backshells and conduit systems designed for use across many sectors including aerospace and defence as well as with commercial grade connectors products. Sunbank backshell products available include straight, 45 and 90 degree options, backshells with EMI/RFI shielding, backshells without strain relief, backshells for Micro D and D subminiature connectors and ARINC 600 backshells to MIL-DTL-81659. Sunbank also offers a wide range of backshells and accessories qualified to M85049. As well as shrink boot adaptors, protection covers to the D38999 spec and all the necessary assembly tools. Sunbank's "Sunflex" flexible conduit system provides for flexible cable routing while protecting the cable from mechanical and chemical stress. This is due to the use of various “superimposed” physical layers with each layer adding specific properties and functions to the routing.