Coolest summer climbing pants

If you're not wearing shorts for whatever reason, what are your favorite pants to wear in warm/hot weather that retain the least heat?

OR Voodoo for me in one of the lighter colors.

Edit: Per Rexford below, the Ferrosi fabric is cooler and a lighter than the Voodoo. I chatted w/ OR. Both are 90 denier (which I learned is a measure of fabric thickness) but the Voodoo blend has a little more nylon (88% vs. 86%) and a little less spandex, so Voodoo a little more abrasion resistant (mine have lasted forever) and warmer.

Following
My six year old stretch Zions finally blew out and I want a cooler pant

OR Ferrosi man-pris

Prana super mojo 2 pants

Patagonia Hampi pant

Mack Johnson wrote: OR Ferrosi man-pris

For truly awful hot and humid weather I have found these to be the best pants.  They have actually held up a lot better than I would have imagined.   

I’ve been happy with my couple pair of Patty Quandary Pants over the last few years. Super stretchy means full range of motion, and the light material keeps me from getting too hot. If it’s really gnarly out, I’ll roll them up to below the knees

Tyler Bjorkman wrote:

For truly awful hot and humid weather I have found these to be the best pants.  They have actually held up a lot better than I would have imagined.   

X2 on OR pants.  big fan of the crag pants.  higher waist with draw string stays put under harness no matter what you're doing.  was glad to see them brought them back - picked up two more pairs

BD Alpine Light

Another vote for the OR Ferrosi - specifically the Ferrosi Crag pants, which may be a hair warmer that the regular Ferrosi due to reinforced knees, but a really nice crag pants. they redesigned them this season and the cut is way better than the first version. I highly recommend this pant.

Some thoughts on the other suggestions:

OR Voodoo's are much warmer, avoid

Pantagonia Hampi could be the coolest pants I have used but are discontinued, and look and feel like dress pants too

Prana's feel similar to Ferrosis but don't breathe anywhere near as well so feel much warmer (but have the largest cult following)

BD Alpine Light are almost as cool as Ferrosis but have a horrible baggy cut, not good for rock climbing

Jim Urbec wrote:

X2 on OR pants.  big fan of the crag pants.  higher waist with draw string stays put under harness no matter what you're doing. 

Agree, but my new ones do not have the draw string anymore, do yours? I miss the string a little bit but all the other improvements make the new version so much better.

Not sure how they compared to the pants others have mentioned, but I find the patagonia rps rock pant light and comfortable. They also have a draw string. 

+1 for the rps. The fabric is really light, but fairly durable and breathes really well. 

Another vote for OR Ferrosi, convertible are stretchy enough to remove the lowers over most footwear even without ankle zips.  

I wear pants to climb pretty much all summer long to combat rock rash, poison ivy, and biting insects, but I can't stand me a synthetic fabric in the heat.  I like something simple, cotton- (or hemp) based, with good stretch and a wide elastic waistband for comfort in a harness.  My favorite climbing pant ever, the Verve Xeno, is rarely made any more, but I've subsequently had good luck with the E9 Rondo Slim and the Prana Moaby. 

I like the OR Ferossi and the crag. I think my favorite though are the Metolius pants. They are slighlty lighter than Ferossi. Not stretchy but cut well and have double knees and seat.

Rexford Nesakwatch wrote: Another vote for the OR Ferrosi - specifically the Ferrosi Crag pants, which may be a hair warmer that the regular Ferrosi due to reinforced knees, but a really nice crag pants. they redesigned them this season and the cut is way better than the first version. I highly recommend this pant.

Some thoughts on the other suggestions:

OR Voodoo's are much warmer, avoid

Pantagonia Hampi could be the coolest pants I have used but are discontinued, and look and feel like dress pants too

Prana's feel similar to Ferrosis but don't breathe anywhere near as well so feel much warmer (but have the largest cult following)

BD Alpine Light are almost as cool as Ferrosis but have a horrible baggy cut, not good for rock climbing

Agree with everything said here- however the Hampi’s are not discontinued and are still available, in more colors than before, from Patagonia

I really like the Arcteryx Lefroy - maybe not as breathable as some options but they've held up great to tons of climbing, have kept me comfortable in the heat, and available up to 35" inseam which at 6'3 I was thankful for.

These are the coolest climbing pants

Zachary Winters wrote: BD Alpine Light

man, i have to disagree with this one. bless their hearts, but who would make "light" pants that only come in dark colors.  ugghhhh. probably the same folks that make lightweight biners that won't fit into pins...

someone mentioned the ferrosis. these are almost awesome, but the front pockets are terrible. be prepared for your keys to fall out of your pocket every time you go somewhere.  it boggles my mind that they would make pockets like these.

probably my best pair of light pants are a pair of marmot pants i bought a few years ago. light tan, good pockets, pretty tough.