Sheath is the third and final studio album by British IDM project LFO.

[3] John Bush of AllMusic gave the album 4 stars out of 5 and called Mark Bell "the most imaginative producer in British techno.

"[4] Dominique Leone of Pitchfork gave the album a 7.3 out of 10, writing, "Bell's strength seems to reside in his softer sides that fools me into thinking his more extroverted outings are lacking.

"[10] Paul Sullivan of BBC wrote, "the album manages to re-capture some of the original pioneering spirit that made Frequencies such a tour-de-force.

"[6] Joshua Klein of Billboard said, "The drum machines sound delightfully (if deceptively) rinky-dink, and the absence of vocalists keeps the focus on the beats and occasionally cacophonous sonic clutter.