Olafwrote a review of Montane Deep Cold Down Jacket - Men's on December 8, 2016
Familiarity: I've used it several times
Fit: Runs large
I am 5'8" tall, 155lbs heavy and I wear 38R suits/Medium coats but I had to size down to a SMALL in the Deep Cold Down (DCD) to get a proper fit. Even still the size Small is cavernous enough in the chest and arms to layer lots of clothing underneath. This is a big lofty warm expedition coat that wears easy and feels very light-weight on your back.
With 400 grams of 800 fill responsibly sourced Down supplemented by 40 grams of Primaloft you will never need to layer more than a base and mid layer underneath the Deep Cold Down to keep warm in any type of weather inside the orbit of Pluto.
Nice Shape - The DCD has an actual shape instead of being a shapeless lump that most big expedition down coats tend to be. The DCD is tailored to fit exquisitely with contoured stitched panels, hem cinches and a waistline cinch. So it remains rigid and keeps a respectable shape whether worn zipped up or unzipped.
Durable - Montane uses different weaves of Pertex Endurance fabric throughout the DCD. There is thicker fabric at the arms, shoulders, hood and lower rear with softer fabric on the chest and mid-back regions so that it is a strong wear-resistant (not just weather-resistant) coat.
Warmth /Weight Ratio - This coat is very warm but also the lightest expedition box wall down coat I've worn. Having a removable hood with an ingenious substitute for a traditional heavy snow skirt helps shed weight. The Mammut Eigerjoch is the closest in warmth/weight ratio but the DCD has more features.
Hood - One of the best hoods I've ever experienced. It is warm, waterproof, helmet friendly, offers full face coverage, tucks away when not used, has a wired brim, & 3 way cinch system in addition to being removable. The hood connects with a sealing zipper and baffle flap so when worn it protects like a normal non-removable hood.
Collar- This coat has a down filled baffle fleece collar that wraps around your neck when the coat is zipped up so heat is sealed in and cold is locked out. The top of the collar also has a cinch toggle that lets the collar hug your neck when zipped up or be pulled back when zipped down if you get too hot.
Internal Waist Cinch - Instead of the traditional heavy snow skirt the DCD uses a bungee cinch toggle that runs along the waist at the back. When cinched the jacket hugs your torso and hips at the back to effectively sealing in heat and keeping out cold and snow.
Sleeves - Articulated and long for the size and provides good coverage.
Belay Zipper - Love that it has this long forgotten, very useful, feature that most other expedition down coats no longer have.
Drop Tail Hem - The Deep Cold Down is long enough, with a well-defined contoured drop tail hem, so that your upper legs are well covered. If you don't need the extra length then the hem cinches will shorten the coat.
Exterior Pockets - All pockets are well placed with down-filling or fleece on both sides so your hands will be warm in all of them. They all secure with either Velcro strips (lower bellow pockets), zips (side fleece-lined hand pockets), or both Velcro and zips (napoleon chest pockets).
CONS (nothing substantial but if you need to nitpick):
Too much Velcro - Velcro on almost every pocket, along the center storm flap, on the cuffs and all over the hood. It makes using the coat easy and quick compared to using tiny snap buttons but the Velcro has a loud distracting tearing sound that you eventually get used to.
Small Interior Pockets - At best a 16 ounce Poland Spring water bottle will fit in the bigger of the two mesh pockets. The smaller zippered but is big enough for cell phones, wallets and keys.
This is a great coat at the end of the day. Apart from all the things I pointed out it is easy to wear and light on your back while providing the best warmth and weather protection anywhere your feet can take you on this green Earth!