For down insulation under $300, it's hard to beat the warmth and feature-packed design of the Montbell Permafrost Light Down Parka. This jacket pairs 800 Fill down with GORE-TEX WINDSTOPPER fabric to trap heat and repel wind. This fabric is a 30 denier Ballistic nylon weave for high abrasion resistance, and features a DWR finish for protection from light precipitation. The adjustable hood, cuffs, and waist seal out drafts. Side pockets keep your hand toasty and the internal pockets stow gloves or extra gear.