Thermoplastics rubber is manufactured from oil
bound styrene-Butadine-styrene block copolymer. Similar to PVC this
material can also be SUPER-EXPANDED to produce light weight soles.
This material can also reach a specific weight of 0.5 but has a fairly
good resistance to abrasion and other characteristics appreciated by
the sole market. Moreover, it lends itself very well to the
two-material using a semi- compact TR for the outsole and a
super-expended TR as midsole.