2015 Version of the Elephant Foot vs. The 2013 Version
The Elephant Foot has had a change in design. As you can see below, this 850-fill bag is rated to 15-degrees (with Downtek) and the baffles are now vertical instead of horizontal; this bag also now offers baffled construction and no more sewn through. This bag now costs $450. The latest version is pictured on the left, with the older version on the right.
Hands-On Review of the 2013 Elephant Foot
The Brooks Range Elephant Foot is a three-quarter length 850-fill zipperless half bag. It's 61" long and covers the vast majority of your body. A lightweight and comfortable elasticized suspender system keeps the bag in place and over a down jacket. This is main advantage of the Elephant Foot over the Feathered Friends Vireo: the combination of the waist cincher and suspenders do a better job at securing the bag than the Vireo's weak neck closure. This is very useful when perched in a sitting position on a tiny ledge.
Besides the suspenders, the Elephant Foot performs poorly compared to the Feathered Friends Vireo. It has down is 800-fill, not 900-fill; its shell material is an ultralight 15-Denier PErtex Quantum, but not the Vireo's more water resistant Pertex Endurance UL; its baffles are sewn-through, not boxed (sewn-through is less warm); and the Elephant Foot is available in one length, not the Vireo's three. The six-dollar price difference does not make up for these performance drawbacks. As for keeping the bag attached at night, we suggest the Vireo in the next size up.