Halvarssons liner

[caribcat]

I have the Halvarssons Odyssey suit, which is blinkin' excellent by the way.... way way way better that the BMW it replaced.

It comes with an outlast liner which I'm told I should leave in even in this hot weather as it adapts to temperature and changes from an insulating to a cooling membrane. Is this complete horse-shit or is there some science behind it? Anyone have experience?

Cheers,
Tom

 

[Schtum]

It's not complete horse shit. Outlast is a PCM (phase-change material), originally developed for NASA. It contains paraffin wax crystals which absorb excess heat when you're too hot and give it back out when you're too cold. The threshold for that is probably set somewhere either side of 36-37 deg. C.

There are however limitations. For example, I suspect that in desert temperatures of 40-45 deg C + you'd be better off with the liner out, all your vents closed and a soaking wet cotton T shirt underneath. Even in ambient temps of 30 deg +, you'd probably be better with the liner out and your vents open when you're moving.

I wore my Armacor suit with its smart liner duri a tour of deepest, darkest Englandshire last week and I was fine in temperatures up to 23 deg C with the liner in.

 

[OscarIndia]

I have the Halvarssons Odyssey suit, which is blinkin' excellent by the way.... way way way better that the BMW it replaced.

It comes with an outlast liner which I'm told I should leave in even in this hot weather as it adapts to temperature and changes from an insulating to a cooling membrane. Is this complete horse-shit or is there some science behind it? Anyone have experience?

Cheers,
Tom

No idea about your suit but material which does that's been around for years. Used to get given t-shirts for Iraq which did it. Pleasingly, I managed to procure "a few" and now use them as riding base layers.

 

[oblertone]

The Outlast liner ...

... does indeed help keep you cool, only problem being is it inhibits the venting system, so you takes yer choice

For some unknown reason I was recently sent on a CBRN basic course where I was supplied with a full length Outlast 'cooler' layer; believe me under two layers of impermeable kit it did its job surprisingly well.