The STIHL ADVANCE X-Flex basic shoulder harness attaches to the ADVANCE X-FLEX waist belt (sold separately), helping to distribute the weight of attachments to the back and shoulders. The harness can quickly and easily be attached to the hip belt via the metal hooks.Holders for smartphones or radios can be attached to the vertical straps with the use of the robust STIHL attachment clips. The length of the straps can be adjusted in three positions to suit the users height, and the high proportion of orange and reflective elements ensure good visibility at all times.