The Rick Young Outdoors Ultra-Light Bino Harness features a long-lasting shock cord with a 1-point adjustment to eliminate twisting, protect against a poor fit after changing clothing layers, and eliminate vision-blurring or fluttering due to wind. The thin, low-profile design won't trap body heat or cause chafing for all-day comfort. Quick-disconnect fasteners stand up to the elements. Manufacturer's limited 2-year warranty. One size fits most. Long-lasting shock cord 1-point adjustment for a reliable, comfortable fit Thin, low-profile design for added comfort Quick-disconnect fasteners