Converted to Gilles a couple of years ago, originally bout the neutrino, promptly fell in love with it and decided to buy this one and put it through its runs. A superb seasonal equivalent. Extremely comfortable, and provides massive agility with out it riding up your back. The water treatment is very effective at combatting most showers, whist the power shield is extremely effective at suppressing cold winds. I use mine, for everyday walking, climbing & cycling. Great for that little added pick me up heat, but without sweating. No abrasion from rubbing agaInst tough rocks and stands up well at work! So the build quality is great. There is no rubbing tfrom the collars and from the seams at them arms, so it's very comfortable. Very handy pockets on the sides, and inner, which when in use, don't cause annoyance or as sometime happens with inner pockets pulls down from the inside. this has none of those problems. It's a definite looker for a wide array of people, who want the flexibility whilst keeping the elements away from you. (arms exzempt)