The Pinnacle is a warm, comfortable, and fully featured sleeping bag made with 800-fill down. The bag is warmer than most three-season bags (the category encompasses both fifteen and twenty-degree bags) Unfortunately, however, its heavy and bulky and not warm for its weight.
Marmot Pinnacle Review
Cons: Heavy! Moderate quality fabrics = high material weight = reduced warmth to weight ratio.
Our Analysis and Test Results
The Marmot Pinnacle 15 is a comfortable, warm, and fully featured sleeping bag. Its stuffed with 800-fill down and has several nice amenities such as a pocket that stuffs into the draft tube, and a thick and burly neck baffle. The Pinnacle is warmer than the Mountain Hardwear Phantom 15 and Marmot Helium 15, but colder than the Marmot Plasma 15, and ten degree bags such as the Western Mountaineering Versalite, Feathered Friends Lark and Valandre Bloody Mary. The Pinnacle, however, is considerably cheaper than these other bags.
The Pinnacle may be warm and loaded with features, but its also disappointingly heavy and bulky. The bag checks in at 40 ounces, which is close to twice the weight of the lightest full zip three-season bag (Feathered Friends Hummingbird, 25 ounces). The Pinnacle does offer a lot of warmth for the price. Consider the bag if youre on a budget and care more about warmth than weight and compressibility.
Note that this review has been updated multiple times as we've tested more bags over the past few years. The comment below references a previous version of the review that compared this bag to a smaller set of bags.
— Chris McNamara and Max Neale