After several hundred meters of steep and sweaty walking you reach the Summit. There is a stiff breeze, so take your opouri peak jacket out of your backpack. This lightweight jacket is insulated and windproof. Just what you need when you are fast move in The mountains. The jacket is Filled With our eco-friendly synthetic fiber insulation, which provides a basic level of Warmth. This is combined with a windproof shell fabric that increases Warmth. The jacket is so light and packable that it fits in your hip Pocket, and it comes with a practical small pannier.The flex panels on the sides are a practical feature for more Sporty activities. The jacket is also ideal as a support jacket for breaks. And in wet weather you can wear it under your hard shell.