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Mountain Hardwear Tempest SL Jacket Test

The non-waterproof lightweight waterproof...


Posted: 23 March 2001
by Jon

Tempest SL Jacket

Mountain Hardwear Tempest SL Jacket

Price: £109.99

Weight: 443g (large)

Features: Conduit SL fabric with brushed inner Vapor-Therm lining, seamless shoulder construction, pit zips, roll-down Ergo hood, fleece chin guard, handwarmer pockets, single-hand drawstrings,

Good for:lightweight, highly breathable, very water-resistant use for running, biking, climbing etc Not much cop for: Very hot conditions, abrasive climbing use we think

Tempest SL - soft, silky and effective like newly
waxed legses
The Tempest SL is MHW's entry in the 'lightweight waterproof jacket stakes', except that strictly speaking it's not waterproof, but we'll get to that. It's part of the growing move towards 'two-jacket families' - a heavy shell for winter use supplemented by a lighter, more compact top for summer and fast-moving use.

It's light and it's compact alright, stowing down to a neat, pint glass-sized package, but what's with the not waterproof bit? Okay, the fabric which uses MHW's breathable Conduit SL membrane laminated to a very fine 30D rip-stop nylon face material is waterproof, but the seams aren't taped, so strictly, the Tempest is 'highly water resistant' rather than 'proof'.

Long pit zips as standard

Not that you'd know it in use. The beauty of this thing is that the Conduit SL really is somewhere at the top end of the breathability scale. We've used it mainly for running and cycling so far and it's definitely better breathing than anything else which offers a comparable level of protection. It's all helped by the soft, brushed Vapor-Therm lining which wicks moisture away from the skin and feels comfortable against the skin. The lining has some thermal value and for this reason we wouldn't want to use it in very hot weather, but in most UK conditions we reckon it'll be spot on.

We'd also say that in use, the Tempest is effectively waterproof. We've used it in some heavy downpours and it's worked fine - it'd take really serious rain to soak through and even then, your body heat tends to drive moisture outwards again.

... and effective roll-down hood, here
it's effectively rolled down

Of course the fabric is only half the story. As you'd espect from Mountain Hardwear, lots of thought has gone into the technical features. For your £110-odd you get long pit-zips for ventilation - work well when moving fast, to maximise, stick your arm through them - twin handwarmer pockets, a slim, practical cut and a roll-down hood with stiffened peak that works susprisingly well providing good protection with minimal bulk. It stows under a simple but effective Velcro-fastened flap and stays stowed.

Verdict: It's relatively early days yet - watch this space for updates - but so far we're massively impressed. If you look at the Tempest as a water-resistant windproof, it's expensive, but in effect it actually functions as a waterproof in all but the very worst conditions. The detailing is good, features all work well and breathability debatably the best of any lightweight jacket we've tried that offers this level of water resistance. The soft, light lining gives it a warm, comfortable feel but without cooking you and makes for warmer stops. Not sure how well it'll work in very hot weather though and the soft face fabric doesn't feel as if it'll like being dragged over abrasive rock. Good for biking too.

Performance

Value

Take me to the Mountain Hardwear web site in a refined, lightweight manner...

Pushed for time: Technically highly water resistant, the Tempest uses MHW's SL Conduit membrane, which is waterproof, but doesn't have taped seams. In use it's brilliant - highly breathable, effectively waterproof and comfortable with great features and detailing. Long pit-zips help with ventilation and the hood is also good. It packs very small and, at just of 400g, is in the ball park for lightweight waterproofs. Not cheap, but highly effective and a great alternative to lugging a heavy mountain jacket around in all but the worst conditions. We like. Expensive if you regard it as a glorified windproof, but in reality it's in the waterproof market.

Your Opinion Here:

If you'd like to add your own experiences of this product please e-mail us with a summary and we'll post them here in this handy space at the bottom of the page. If you have questions you can mail us direct, Ask Richard Gear or try a posting to our gear forum.


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First few weeks, Brilliant. After a month the tempest can't be regarded as anything more than showerproof, once the rain reaches a certain saturation point or the wind is forcing light rain you suddenly realise the membrane has been overcome and you're wearing a windproof top but the moisture has transfered to your inner cloths, similar to softshells but different. the pit zips are fiddly and difficult if you're wearing a rucksack. Verdict: Slightest increase in rain and you should consider reaching for a Rainproof Jacket.   

Posted: 07/12/2008 at 13:29

Welcome to the forum Eddie!

Posted: 07/12/2008 at 14:57

Have you tried re-proofing the jacket yet to see if thet helps?

Posted: 07/12/2008 at 14:58

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