A lightweight, "Paclite Gore-Pex" rain pant with 1/2 to 3/4 side zips for easy of getting on and off with boots on. These were what I wanted use on long day hikes and backpack trips. The Sizing was a little weird for me . Im 6ft 170lbs and 33inch waist. The M fit the best if not a tad on the athletic fitting side (which I prefer). Large was too big in waist, I had to cinch the waist band all the way; i had hiking pants on during the fitting; and the length of the legs was too long, and I was worried about rubbing during hiking. I went with the Medium and still feel they are just a tad small but not a big problem. The real problem is these started to wet out on the first use in the backcountry, and by the second day they were a fail after just 2 hours in the rain. Wet-out was down the entire upper front half of the pant and the lower foot of the pants. The breathability was now compromised, and i started to get nice and moist on the inside of the pant. I also discovered that they are not very durable, as sitting down for one meal I already had a small hole in the seat, lucky my upper shell shielded the hole from rain. The wet out may just be a OR/gore-tex defect/warranty issue, and may not reflect on all of these pants. To have these kind of problems on the first use of these pants is not what I expected. Unfortunately I will have to go to gore-tex or OR for return as I purchased these in winter and have not used them until summer so BC.com will not accept the return. OR makes some great gear but these did meet my expectations. Hope these work better for others.