Top Rated: Odlo Warm Originals Sports Underwear Crew (8.4 / 10)
Category: Lightweight (~200g) Thermal Sleepwear Top
With an excellent warmth to weight ratio, this is a reasonably close fitting thermal top with some stretch, sensible fitted cuffs and a dropped back to ensure good overall coverage. We're sure its intended purpose is as a winter baselayer, but in this regard a) it's too warm; b) it lacks venting options, and c) merino/polyester hybrids are a better option for active winter baselayers. However, as sleepwear, from August summer nights to freezing February winters, when the hard graft is done, the Sports Underwear Crew has proven a durable and extremely comfortable top to wear in and around the tent, making it our current top pick in the Outdoor Sleepwear category.