Gitzo Tripod Bag For Systematic Series 2, 3, 4, 5 or Tripod Plus Large Head. Our tripod bags have been redesigned to fit the latest Gitzo tripod models & more tripod & head combinations, & to improve comfort during carriage & handling. The new bags are made from rip-stop fabric, which is both softer to the touch & resistant against tearing & 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.