The R1 Series is a compact 24-hour dismounted operations pack with male-female connections on compression straps, load lifters, and shoulder straps. It features PALS webbing for MOLLE accessories, an SG radio harness, and a comms port for antenna and cables. The pack is compatible with the SG Hydro Sleeve for a 3L bladder. Its adjustable shoulder straps accommodate various torso lengths and can be attached to the R3 frame for carrying heavy loads efficiently. Features: Made in the U. S.A. and Berry-compliant 2200 Cubic inches / 36 L Hydration-compatible Internal and external PALS Webbing 2 Internal zippered pockets 1" Removable webbing belt Comms port Heavy duty #10 YKK zipper Stone Glacier R1 2200 Coyote OSFM Pack 50117-CY-OSFM