Western Mountaineering MegaLite

650 – 710 g

across 3 sizes

Size / variantClaimed (g)Verified (g)Measurement note

5'6" (165 cm)650—

6'0" (180 cm)680—

6'6" (200 cm)710—

MaterialsExtremeLite 12D nylon shell, 850+ fill power goose downBrand countryUnited StatesProduct pagewesternmountaineering.com ↗NotesMummy (w/ top collar), rated -2° C (30°F); 10 cm loft. Total weights from WM's specification chart; fill 310 g / 340 g / 370 g.

Propose an edit— fix a weight, add a size, or verify it with your own scale. A moderator checks it before it goes live.