MAKE SURE YOU GET THE IPX8 VERSION
Buyer beware! The older version of this headlamp was only rated to IPX4 water resistance (splash protection rather than full submersion) and is woefully inadequate for hiking in prolonged wet conditions. I experienced rusting in the battery compartment and intermittent failure with the old version on a Long Trail hike in rainy fall conditions. Black Diamond has acknowledged this glaring design flaw with a "redesigned, now fully waterproof" IPX8 version, but there may still be inventory of the old model out there. Backcountry.com has two product listings, one for the old IPX4 version and one for the new IPX8 version. However, the product images on the website are backwards between the new and old version which leads me to think that Backcountry may not have their inventory correctly sorted on this one. If you order this headlamp, carefully inspect the fine print on the packaging when it arrives and MAKE SURE it says IPX8 raher than IPX4. If you get an IPX4 version I strongly suggest returning it for refund immediately.