$65 seems about what I paid for mine. I would put the weight at about 3 to 5 lbs. Essentially it is fleece material that has a gas-permeable laminate sandwiched between two loft layers, with some reinforcing in the laminate. It is waterproof but breathable (think gore tex). It resists punctures and tears fairly well. Like any other synthetic, it is vulnerable to melting temps, but it does come with some really good guarantees.

The fiber bias is a tad stiffer than normal polar fleece, but quite supple. It is very quiet material in the forest, good for hunting.

It is expensive, but you are paying for some terrific qualities. I've a hunting suit made from this material. It is less bulky than conventional foul weather parkas and multi layer outfits. If you really want something that is just like the real thing back home but will hold up well and keep you dry, then this is the ticket.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)