Some time ago now, I looked at Dagmar Drinkler's pdf "Die Rekonstruktion eng anliegender Bekleidung aus Antike und Renaissance,' online at www.teppichfreunde-norddeutschland.de/de/img/treffen/Drinkler-Sprangtechnik-09072011-72dpi.pdf.
This summer I went looking for more primary evidence that would bear out her findings on form-fitting sprang pants and sleeves in the ancient world and medieval Europe. It was like knowing that someone before me had said "open sesame" and seen a treasure trove, as it were, full of exciting information. All I needed was to find the right place and the right keywords to search with. I found some form-fitting pants shown in tapestries from around the 1500s. I did a broad search of Attic pottery on the British museum website and saw hundreds of images of pots, mostly showing fillets that might have been made with the språng technique.
I saved my place and didn't get back to it for a while. Then one day I picked up the search again and came across a reference to an Oriental, a rather dated way of saying someone from Asia. The figure, on British museum number 1912,0709.1, wears pants and sleeves that correspond with Drinkler's research.
From there I searched with the that keyword and found more examples, then I searched for Persians and Amazons and found many more. A couple were wearing form-fitting garments on their upper bodies that looked integral to the sleeves, for example numbers 1867,0508.941 and 1837,0609.59. The patterns are a lot of fun to look at. I've pinned as many as I could on Pinterest, here http://pinterest.com/brighthughes/språng-leggings-and-garters/.