The shield is now wider, more red with a silver sword-style base and gold accents on each of its sides, and a gold frame at the top were the sword's handle sticks out that can close together when the sword's drawn.

The gold accents on the shin guards are thicker, the wings have been replaced with the curving crests, and the blue orbs on the knees are now diamonds.

The pauldrons now sport a curving tip, the second under section is silver, the back side now has a silver plate with a gold edge and red accents, and the front now has a silver curving crest with a blue gem.

The armor kilt's front now sports a silver-rimmed orange gem at the front with a silver flap on both sides, the gold rims have disappeared, the other flaps now have a gold base, and a gold ring at the top around the waist.

The silver upper rims on the vambraces now sport a gold edge.The tunic armor sports three blue-raspberry gems on each rib cage area.The 'V' crest on the chest has been replaced with a blue gem, symbolizing the blue core on the Achilles Superking Chip, and a shield-like gold frame with red and white accented jagged edges.

The faceplate is now smooth and singular, and the sides have been replaced with extensions from the crests on the helmet's sides.The wing on each side of Achilles' helmet have been replaced with a circular crest, and the blue 'V' base is now a gold 'V' with an arrowhead on each point and a pronounced shield-like crest with a silver-framed orange gem in the center.Infinite Achilles' avatar is an upgrade of Union Achilles' with alterations:.

Like the namesake of its predecessors Z Achilles 11 Xtend, Z Achilles 11 Xtend+ Cho-Z Achilles 00 Dimension, and Union Achilles Convert Xtend+ Retsu, Infinite Achilles' name is based on the word 'infinite', a term that describes something impossible to measure or calculate, and Achilles, a Greek hero who fought in the Trojan War and was the greatest warrior and central character in Homer's Iliad.

Infinite achilles brave valkyrie