An ultra-light and ultra-warm mid or outer layer, the Heli Longline Jacket from Kathmandu is perfect for when the temperatures suddenly tumble. A water-resistant, ripstop outer is perfectly suited to the outdoors whilst the duck down / feather filling offers copious amounts of warmth. An elasticated hood and cuffs further seal ni the warmth, whilst the ensure jacket packs down into its own pocket, perfect for having ready in the car or rucksacks.