I've used this fleece as part of a layering system and on it's own - and it's perfect for multi activity use. It's lightweight at 255 grams so is not bulky or thick whether your wearing it or carrying it in your rucksack. The Tecnopile 100 fleece is both warm and quite breathable, wicks moisture and dries very quickly. In colder weather it's especially useful as part of a layering system. The fleece did not suffer from abrasion or pilling which is a good feature when using it with a rucksack. The single neck half-zip is also functional as a ventilation feature. I liked the long body length and the loose design fit. I like the styling and design, especially the large wolf-paw outline on the back (although this might not be liked by all). The colourway I have is Night Blue but other colours are usually available.