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The Dyna Action Parka is the perfect compromise between performance and packability for those venturing into variable winter conditions. It is a streamlined, technical layer for those who don’t compromise in winter conditions.
Montbell says:
An ultralight technical alpine jacket designed for ice climbing, ski mountaineering, and other winter pursuits. High-quality fabrics are purposefully placed on the jacket in order to cut down weight while delivering necessary strength and protection to correspond to variable mountain conditions. The lightweight, stretchy properties allow for dynamic movement while providing comfort to assist you all year round on technical alpine pursuits.
(Unfortunately, we are unable to ship MontBell products outside of the UK)
Our Verdict
The Montbell Dyna Action Parka is an impressive choice for winter alpine conditions. At just 400 grams, this lightweight jacket is purpose-built for cold-weather pursuits such as ice climbing and mountaineering. It excels in movement and weather protection without the bulk.
The blend of Gore-Tex fabrics offers a well-judged balance of breathability and durability. Heavier-duty material is used where you need it most, while lighter, more breathable fabric with added stretch in the hood and underarm areas helps keep weight down. The pit zips are generously sized, providing excellent heat regulation during high-output activities.
The powder skirt, along with two cinch cords—one at the hem and another just above the hips—creates a snug seal to keep out snow and retain warmth. The helmet-compatible hood offers three adjustment points for a precise fit. Five well-placed pockets, including a stretchy dump pocket ideal for stowing gloves or hats, keeping them warm and accessible, enhance its practicality. Despite its technical features, the parka packs down small, making it an excellent choice for minimalist and weight-conscious adventurers. Its eco-friendly design, incorporating plant-based nylon and PFAS-free finishes, is another standout feature.
- Reviewed by Ultralight Outdoor Gear
Features
- Supple and stretchy GORE-TEX C-Knit Backer technology on body/sleeves
- Lightweight and breathable Paclite on hood and under arms
- Original Sewing Pattern allows unrestricted arm movement
- 3-Way Adjustable Hood ensures a snug fit and visibility
- Helmet Compatible Hood fits over a ski/snowboard helmet
- Face Shield Collar protects the face from wind and snow
- Zip End Guard protects your chin and face
- Articulated Arms improve fit and allow for dynamic movement
- Adjustable Alpine Cuff helps keep wind and snow out
- Weather resistant Aqua-Tect Zipper keeps out water in a lightweight form
- Pocket Hem Adjuster allows for cinching the hem while helping keep out chill air
- Anti-Fog Collar minimizes eyewear fogging and frost around the mouth
- Pit Zips vent heat and moisture
- 2-Way Front Zipper allows for access from the bottom
- Powder Skirt helps keep out cold drafts and snow (no textured rubber tape on Dyna Action Parka)
- 32cm (12.6 in) Pit Zips vent heat and moisture
- Fully seam taped by light and thin 13mm width tape
- 5 pockets (2 zippered hand pockets, 1 zippered chest pocket, 1 zippered internal pocket, 1 internal drop-in pocket)
- Stuff sack included
Specifications
- Small weighs: 389g
- Medium weighs: 400g
- Large weighs: 424g
- XLarge weighs: 437g
- Water resistance: 20,000 mm
- Breathability: 60,000 g/ m² / 24 hrs
- Compressed size: 12 x 19 cm
Material & Construction
- 3-layer GORE-TEX Fabrics
- 30-denier friction-weave Ballistic® nylon taffeta (DWR finish)
- Hood, under arms: 2-layer GORE-TEX PACLITE PLUS technology
- 12-denier Ballistic Airlight® nylon ripstop (DWR finish)
- Water resistance: 20,000 mm
- Breathability: 60,000 g/ m² / 24 hrs
