The hood is designed to fit best over your head without a helmet. If you fit the hood to a helmet it ends up a compromise when you are not wearing one and doesn't work very well. Way too much volume. It should pull over most ski helmets, but that's not what it is sized for.

It's 1.25" shorter and a skosh slimmer fit but you shouldn't need to size up. Jackets are fit based on use and the Crystalline is more atheltically fit than the Precip but intended to fit the same body appropriately.

In inches, center back length in medium is 28.5, large is 29.5 and XL is 30.5.

Leadville is primarily Gore N2S and Gravity is a fleece backed stretch fabric called Quicksilver. Gravity is warmer due to fleece lining. Leadville will breath better because the N2S is designed to move moisture away from the skin. Gravity is both heavier and bulkier. That said, Gravity will be best if you want warmth and the Leadville will be best if you want light weight, breathable. Only other caveat is that the N2S fabric (found in main body) is windproof versus the Quiksilver which is wind resistant.

Nano is Gore Tex PacLite and Mica is Membrain Strata. Waterproofness, packability and wind resistance are essentially the same. The Nano wins in terms of breathability and durability and has more technical features like laser drilled pockets that double as core vents and a wire brimmed hood. The Mica is about an ounce lighter and has reflective hits for visibility.

27.25" center back length.

The Fill Power of the Down on the new one is 800, the previous Ama Dablam was 650 so it's higher quality and the jacket is a little lighter. Quilt lines are also updated. New one is definitely nicer. Fit is similar.

Yes. Pit Zips.

11"

won't need a tarp. the bivy is waterproof and uses a heavier 40d fabric on the floor. Weighs under a pound and is highly breathable. Great choice for going light on spring/summer ski tours.

Great choice for wind resistance, light weight and price. It's water resistant, but not water proof. Steady rain will make the jacket stick to your skin. Marmot Crystalline is 7 oz, windproof and waterproof. It's a new fabric that's highly breathable and will work a lot better in rain than a wind shell. I've worn both on a bike and can't say one is more breathable than the other. I guess it depends on how much you plan on using it in the rain.

Great choice for wind resistance, light weight and price. It's water resistant, but not water proof. Steady rain will make the jacket stick to your skin. Marmot Crystalline is 7 oz, windproof and waterproof. It's a new fabric that's highly breathable and will work a lot better in rain than a wind shell. I've worn both on a bike and can't say one is more breathable than the other. I guess it depends on how much you plan on using it in the rain.

Might check out the Marmot DriClime Windshirt at 312 grams. Lighter and warmer than the Tempo because the Windshirt is windproof and the Tempo is wind resistant.

It's more a day hiking pack than a cycling pack because of the profile and size. Fits close to your back which is nice on or off of the bike. If you carry a lot of gear cycling, use it for commuting, etc... it will work. A little big for short cross country rides with a tool, tube, pump and some water. More of an adventure cycling pack or commuting pack. Built in rain fly is great for wet rides or hikes. Great day pack for hiking.

if you have backcountry in mind, the tour is the way to go. let's the binding pivot freely and has almost no resistance. makes a huge difference touring. think of taking full strides instead of a shuffle steps.

flex definitely has a more bottomless feel in the overlap boots than on tongue design like adrenalin. stiffness wise, argon and adrenalin are the same. sizing should be the same, but the internal volume is a little different. argon is not as boxy and fits more precise in the forefoot.

Boot sole length is 315mm on both and flex index is listed as "AT120" like Adrenalin or Radium.

there are hooks in the tent ceiling that the loops attach too.

same fabric. just different styling.

same fabric. just different styling.

I think it would fit you in the torso, but would be short in the arms. I'm 6'0 155 and I fit the mediums in marmot well, but sometimes could use a little more length in the sleeve. I bet it's too small.

I used to get heel blisters ski touring and started using the coolmax liners under Bridgedale Ski Ultra Light socks and it's work great. I think I was getting the blisters from my feet being wet. I haven't used the liners without a sock over it, but it works great as a liner and does keep the moisture off of my skin. No blisters since.