The Zone pant from Bonfire is an excellent full stretch pant with cordura ripstop & high waterproofing & breathability. Hailing from Bonfires platinum range for the highest quality in materials & functionality. The Zone 2L stretch pant uses Bonfire's amazing Tufftech stretch cordura ripstop fabric which has tons of stretch for mobility so it can move with you & keeps you dry as a bone thanks to the 20k waterproofing & 15k breathability. With full stretch & corura fabric through the intire pant the ripstop material is very durable while being very supple & stretchy. Snagged the jacket on a crampon or a tree? If this even rips at all dont worry it will on rip as far as the next 2mm square. The Zone pant is all tech & built for action! With 30 years of high performance outerwear Bonfire know what they are doing & how to do it well! As with any Bonfire product the zone also has fully taped seams meaning all seams are waterproof tape backed to prevent water ingress. The strata flow vents are a really cool feature here too with vents on the outer thigh & a mega vent on the inner leg. The mega vent zips from the left inner knee all the way round to the right inner knee which can be used as individual vents or one big vent. The strata flow venting system basically allows the air to vent from the outer thigh through & out of the inner vent for a constant airflow to cool down & vent heat quickly. And remember Bonfire products carry a LIFETIME WARRANTY! This is against manufacturing defects not wear & tear but still huge piece of mind.