Adjustable strap bags and the like for use during cycling or motorcycling, which includes an elongate flexible member designed to be secured to a bag or the like, wherein said elongate flexible member includes a first portion of adjustable length (I1) which is designed to lie upon the shoulders of a user and a second portion of adjustable length (I2) which is designed to encircle the waist of the user thereby stabilizing the bag and holding it tight thereagainst.