
Maker’s warranty: Guaranteed against manufacturer’s defects for an unlimited time; covers original owner; a storefront whose “sold by” and “fulfilled by” differ is not authorized; in-house repairs and down overfill. Western Mountaineering’s terms, read Oct 25, 2026
Western Mountaineering’s own description.
The Flight Vest is a premium technical down vest for cold weather backpacking, alpine layering, and ultralight insulation when conditions demand maximum warmth with minimal weight.
Figures with a source link to the page they were read from, with the date we checked it.How we get these figures →
Against every one of the insulated jackets in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
The lightest of the insulated jackets on record is Western Mountaineering Flash Vest at 5.0 oz — 43 g less and $25 less.
The cheapest is Katabatic Gear Tarn Down Jacket (Men's) at $279.00 — $46 less and 116 g heavier.
Main models on the same shelf, compared with the Flight Vest on the makers’ published figures; the tick on each bar is the Flight Vest.
What fill power measures, why the 900-fill Rab Mythic Ultra weighs more than twice as much as the 850-fill Western Mountaineering QuickFlash, and how to choose between down and synthetic. A comparison of published maker specs for seven insulated jackets.
Winter warmth comes from a system: stacked pads, insulation that copes with damp, a regulated stove and traction, built from products in our catalogue.