Bill makes some good points.
For me, a summer sub-5 pound SUL barrier has been achieved. An UL seven or eight pound base pack weight provides more comfort and convenience, as well as permitting personal “testing” of one or two new pieces of gear while still packing a tried and true backup for that new gear.
Still, this pack looks interesting.
Some observations:
Definitely NOT SUL. Perhaps UL, if Essence contributes to a sub-10 pound base pack weight. If the Breeze, at 14 ounces helped achieve UL levels, then the Essence at 13 ounces will help also.
Are there lighter packs? Sure. Essence seems to be very weather proof and somewhat robust. The materials used should provide a degree of weather resistance and should last quite a while. Not Dyneema, but a bit more robust than Spinnaker or other lighter weight fabrics. Large enough for a Thru-Hike. Manufacturer claimed load capability is Thru-Hike sufficient. Materials are perhaps Thru-Hike capable without the need to replace the pack part way through the hike. Dyneema Breeze certainly was Thru-hike capable.
Breeze was a great pack. Breeze lacked a hip-belt. With its hip-belt, Essence should be able to carry a bit more weight than the Breeze.
Breeze, other than “leftovers”, is no longer available. It’s no longer listed on the GoLite website.
While it never was a limitation, the Breeze only had external three mesh pockets. Essence has more external organization capability for those who desire this feature. External mesh pockets should function fine for convenient bladder or bottle access.
Front-panel loading is very convenient. With an UL kit this feature may not be as important as it was with all the 50 pounds of gear carried in an 80 liter pack. Still, front-panel loading will make mid-day pack access easier. As a “closet” front-loader fan, I look forward to it. Down-side is pad is buried in the pack and inaccessible at rest stops for use as a sit-pad.
Hip-belt pockets are very convenient and accessible by all while wearing Essence. Top-pocket is very convenient and may be accessible while wearing. Lower side mesh pocket may also be accessible while wearing. Looks like this pack may provide more “on the go” access than other packs. For some, convenience may “trump” lightest possible weight.
A bivouac on the path to SUL? No. A fork on the path to UL? For some, perhaps. For others, yes. I plan to take this fork in the trail and see where it leads.