Aerostich Kanetsu Airvantage electric liner, $237.60 (£146)
Miles covered/time: 500/three months
What’s good? This piece of riding kit is one of the most comfortable I own. Combining this extra layer with my Aerostich Darien suit has been the perfect match for wintery escapades. It’s not too bulky, either, so it also has a welcome slimming effect. Its operation is pretty simple, too – all you need to do is plug yourself into the secure attachments from the battery and it’s job done. It comes in a short sleeve option as well. Highly recommended.
What’s not? There is no temperature control but that’s just being picky – I’ve never felt over-heated while wearing this.