A Plastic World
About 70 to 80 percent of alpine boots on the market are made of polyurethane (PU), a hardwearing and beefy plastic that dampens vibration, absorbs shock, and is easily stretched or ground. This makes for an aggressive, smooth ride. But PU is also heavy.
Enter polyamides (PA). Good
for cruising uphill, they’re around 20 percent lighter than PU and
chiefly used in touring boots. For reliable flex, they behave uniformly
across a range of temperatures. Downside: PAs aren’t as stiff or damp on
the descent. Pebax is a popular, rock solid choice, while Grilamid is
the boot-makers’ new secret sauce. Stiffer than Pebax, this nylon
plastic is robust but pricey.
Browse the best ski boots of the year in Gear Locker.
Read more at http://www.powder.com/gear-locker/a-plastic-world/#tMvaAEJg8sL7KtAl.99
Browse the best ski boots of the year in Gear Locker.
Read more at http://www.powder.com/gear-locker/a-plastic-world/#tMvaAEJg8sL7KtAl.99
No comments:
Post a Comment