The Classic (RS-4) Version of the R-Strap is lightweight and low profile, with the sizing adjustment located on the front for quick adjustments. The RS-4 also features a quick access, secure pocket for storing two extra memory cards in their protective cases. Comes with all of the hardware you need to get going. This includes the ConnectR-2 and the FastenR-2.
The BlackRapid Classic (RS-4) is commonly used for Comfort, Stable, Supporting camera and more.The BlackRapid Classic (RS-4) is most used by customers who consider themselves to be a Photo enthusiast, Semi-pro photographer among others.The BlackRapid Classic (RS-4) is popular because customers like the following qualities of the BlackRapid Classic (RS-4): Adjustable, Comfortable, Does not chafe, Strong construction and Well padded.