“lighter than the Mythic Ultra”

Read asInsulated jacketslighter vs Rab Mythic Ultra

Answer

Insulated jackets lighter than the Rab Mythic Ultra

Every one lighter on maker-published weight · closest in list price to the Mythic Ultra first

Compared with Rab Mythic Ultra1.18 lb$525

Feathered FriendsHelios Hooded Down Jacket1.08 lb$5191.7 oz lighter (49 g)$6 less
Western MountaineeringHooded Flash Jacket10.3 oz$5008.7 oz lighter (246 g)$25 less
Western MountaineeringVapor Jacket15.9 oz$5753.1 oz lighter (87 g)$50 more
Feathered FriendsHelios Down Jacket15.0 oz$4693.9 oz lighter (111 g)$56 less
Western MountaineeringQuickFlash Jacket7.9 oz$46511.0 oz lighter (312 g)$60 less
Western MountaineeringFlight Jacket10.9 oz$4508.0 oz lighter (227 g)$75 less
Feathered FriendsEos Down Jacket (Women's)11.2 oz$4297.8 oz lighter (220 g)$96 less
Feathered FriendsEos Down Jacket (Men's)11.9 oz$4297.1 oz lighter (201 g)$96 less
Western MountaineeringMeltdown Parka1.06 lb$6402.0 oz lighter (57 g)$115 more
Stone GlacierGrumman Down Jacket13.6 oz$3995.3 oz lighter (151 g)$126 less
KUIUSuper Down PRO Hooded Jacket14.8 oz$3994.1 oz lighter (117 g)$126 less
ZpacksDown Jacket6.8 oz$37512.2 oz lighter (345 g)$150 less
Western MountaineeringFlight Vest6.5 oz$32512.4 oz lighter (352 g)$200 less
Katabatic GearTincup Down Jacket (Women's)11.7 oz$3097.2 oz lighter (205 g)$216 less
Katabatic GearTincup Down Jacket (Men's)12.7 oz$3096.2 oz lighter (177 g)$216 less
Western MountaineeringFlash Vest5.0 oz$30013.9 oz lighter (395 g)$225 less
Arc'teryxAtom Hoody12.5 oz$3006.4 oz lighter (182 g)$225 less
Katabatic GearTarn Down Jacket (Women's)9.7 oz$2799.2 oz lighter (262 g)$246 less
Katabatic GearTarn Down Jacket (Men's)10.6 oz$2798.3 oz lighter (236 g)$246 less
Arc'teryxCerium Hoody11.9 oz7.0 oz lighter (199 g)
Outdoor ResearchHelium Down Hoodie (Men's)15.4 oz3.5 oz lighter (100 g)

6 left out of this comparison: 6 with no published weight.

All insulated jackets

Guides

Lightweight Insulated Jackets for Backpacking: Weight, Fill Power and Fill WeightGuide