Our tripod bags have been redesigned to fit the latest Gitzo tripod models and more tripod and head combinations, and to improve comfort during carriage and handling. The new bags are made from rip-stop fabric, which is both softer to the touch and resistant against tearing and abrasion. Our tripod bags have been redesigned to fit the latest Gitzo tripod models and more tripod and head combinations, and to improve comfort during carriage and handling. The new bags are made from rip-stop fabric, which is both softer to the touch and resistant against tearing and abrasion. GC5101 has an asymmetric form with more space at one end in order to accommodate larger heads. GC5101 is the choice when the Systematic tripod + head combination is longer than GC4101, or when the head is too large for GC4101. The shoulder strap is fixed to the bag for maximum stability. specs: External Head Diameter 9.84 in, External Length(L) 36.22 in, Internal Base Diameter 5.51 in, Internal Head Diameter 9.25 in, Internal main compartment length(L) 35.04 in.