The updated ULTRAPANT is our lightest men's and women's waterproof running trousers and has been stripped back even further. Now weighs just 86g. Designed for those runners wanting to race as light and fast as possible, this breathable trouser is perfect mandatory race-day kit. Packs away small for easy, lightweight carrying. 2.5 layer waterproof fabric with 10,000 HH and taped seams keeps the runner dry and protected when it rains.