Hi Atomic,
Some expanded thoughts below to give you an idea of where I am coming from with this.
Without delving directly into Thucydides and relying to a degree on a number of authors who have looked at the topic, there seems to be some consensus amongst those who have written on the topic in the Osprey sources. Whilst Osprey often gets short shrift in some quarters, the respective authors on this subject are well regarded IMHO.
Campbell in Osprey's 'Spartan Warrior' goes into some detail but wraps his comments up by saying…
"During the period of the Peloponnesian War, there seems to have been a deliberate lightening of equipment. The claustrophobic ‘Corinthian' helmet was replaced by the pilos , which left the face, ears and neck exposed. Although this was a far simpler helmet, several examples are known to have been decorated with repoussé or appliqué work, and a bronze statuette (now in Sparta Museum) shows how a crest could be applied.
At the same time, the bronze cuirass and greaves, which had been worn during the time of the Persian Wars, were given up entirely. The Spartiates on Sphakteria, for example, relied only on the protection of their shields. Much the same state of affairs probably continued into the 4th century BC, as long as the dwindling population of Spartiates clung to their heroic traditions. "
He further references Xenophon…
"Xenophon says that Agesilaos ‘armed his men so that it seemed as if they were all bronze and all crimson' (Xen., Ages. 2.7), he is probably drawing attention to the bronze helmets and shields. Nor is there any mention of corslets amongst Xenophon's troops in mercenary service in Persia: ‘all had bronze helmets, crimson tunics, and greaves, and had uncovered shields' (Xen., Anab. 1.2.16).
In his Osprey The Spartan Army Sekunda says…
"At some point during the 5th century, possible c.450-425, the lakedaimonian army decided to discard their cuirasses. Behind this move seems to have been a search for battlefield mobility as well as the need for rapid marching on campaign. In due course other Greek armies followed the Lakedaimonian lead and abandoned their heavy body armour.
This situation continued into the 360s, when representational evidence indicates that the cuirass was adopted again. This change may be associated with new battlefield tactics introduced by the Theban general Epaminondas".
W. Shephard's Osprey book on Pylos and Sphacteria references Thucydides on the subject…
"Adapting to the realities of a war of greater mobility, it seems that hoplites generally went into battle more lightly and less elaborately equipped than their forefathers. Body armour, if not dispensed with completely, was perhaps only worn in particular circumstances, which might have included guard duty or wall-defence or one of the quite rare, classic phalanx clashes.
More specifically, the reference to armour in Thucydides' account of the Spartans' painful encounter with the Stratian slingers can be read as implying that in an operation of that nature they would not normally have worn armour. The iconic closed and semi-closed helmets of the heroic past were superseded by the open pilos, trading comprehensive protection for better vision and hearing, and greater comfort. However, the heavy shield and thrusting spear continued to be the defining defensive and offensive armament."
Even the old WRG Armies and enemies book on Greece by Richard Nelson describes the lightly equipped Spartan soldier, albeit in a rudimentary way.
However, it appears that the reference for the Spartan Hoplite as depicted in the Victrix range is in fact soldier 16 in the WRG armies and enemies of Macedonia.
Importantly it says..
"This is a reconstruction from several sources. Thucydides and Xenophon say Spartans wore the Pilos; so the appearance of the usual corselet, as shown here, on Athenian reliefs showing trophies of Spartan arms, confirms that this is the spolas".
Spolas being the linothorax armour that Athenians wore and by way of reconstruction in the Armies and Enemies book it has been used to describe what Spartans wore also based on Athenian trophies. This is how that interpretation seems to be arrived at in the WRG book. What armour for what trophies from when is not indicated.
The next figure (17) then describes an Unarmoured hoplite. This is what the other (Osprey) authors above describe as the typical Spartan panoply of the time i.e. crimson tunic, spear, shield and pilos helmet. It then goes on to say that only lightly armoured Spartan young hoplites would be dressed this way, the so called Ekdromoi that chased off skirmishers. It does not infer the main hoplite phalanx woudl be dressed in this fashion.
So it appears that the Victrix boxes have used these references to define their Spartan hoplites…the images and descriptions are almost a direct match.
Taken as a whole the visual depiction of all these ‘modern' books portrays Spartan hoplites in lighter shield, spear and crimson tunic fashion during the 2nd Peloponnesian War and beyond. It seems to be the common theme based on varying reference points from different authors. The single book that describes the Victrix style Spartan hoplites is the Armies and Enemies of Macedonia book from WRG…a much older (but still very useful) source…on this point however, it seems to be on shakier ground.
Thus the image in the armies and enemies of Macedonia seems to be the reference for the Victrix Spartan Hoplite sculpt…though IMHO it is a miss cue.
Granted the later released Victrix Unarmoured Hoplites are in suitable clothing to use for Spartans but they are posed unlike the other hoplites so can't be ‘ranked' in a similar fashion, but more importantly they don't have the characteristic pilos helmet and hair of the 'Spartan look'.
Point being, if I was sculpting figures I'd be going with the mainstream modern consensus…not perhaps a comment here or there or one older reference work…particularly as your target audience you sell to will also referenced those same works.
There are multiple visual images of Spartans in this lighter kit….to me, it just seems that perhaps this older (1982) interpretation is now somewhat dated, or at least there are a number of other works countering its position.
Personally I think Victrix could've done an ‘'all options' job if they had the unarmoured hoplites arrayed in the same poses as the other boxes with the addition of a supplementary sprue of Spartan heads, which would have worked just fine and done the job whichever way your interpretation is. If I had to choose one way to go, the modern ‘lighter kit' Spartan IMHO is a more convincing argument as far as these things go.
Anyway, all of the above is just so you can see there are a goodly number of references out there showing Spartan unlike the single Armies and Enemies reference that the Victrix Spartan would appear to be based on…interestingly, Wargames Foundry's (Steve Saleh) range provided both options and I think Victrix could've done the same with some clever sculpting and sprue option choices.
HW