The Nano’s lightweight construction and airy cut make it a comfortable garment. The large rear vent and perforated arm pit areas cement it as the least sweaty option here – great for muggy rides. The three quarter zip offers a little control to the ventilation, but we’d prefer a full length one for rapid removal. It easily packs into its back pocket, there’s also a front pocket, but it was less than useful for storage as items can jiggle about annoyingly.