What to actually look for in chalk for Squamish granite
Granite isn't gym plastic, and the chalk that works fine indoors doesn't always hold up the same way outside. A few specific things matter more once you're climbing on real rock.
Humidity resistance matters more outdoors
Squamish gets its share of rain, morning dew, and general coastal humidity, and chalk that clumps or turns gummy in damp air becomes a real problem when you're relying on it for a full day at the crag. A chalk that holds its texture in a sealed container is worth more outdoors than it usually feels indoors, since you don't have gym climate control working in your favor.
Texture control helps more on real rock
Granite relies heavily on texture and precise footwork rather than obvious holds, and how much chalk you're carrying on your hands actually matters here. Too much builds up on small crimps and edges, reducing the contact you're trying to create. Chalk that lets you control how fine or chunky it is, by working it between your fingers, gives you more say over how much you're actually putting down on a small hold.
Session (150g)
Session is an 80/20 blend, built to outlast. Fine powder coats your hands on the first dip, so the grip is there immediately. The chunky ...
Longevity matters on longer approaches and sessions
Outdoor sessions tend to run longer than a typical gym visit, between the approach, warmup, and actual climbing. Chalk that wears off in a few moves means constant re-chalking with cold hands and a pad underneath you, which isn't exactly convenient. A blend weighted toward chunkier texture tends to hold up better over a longer stretch than something mostly fine.
Why POUFF was tested on Squamish granite specifically
POUFF's formula was developed and tested on Squamish granite, not just indoor holds, because humid outdoor conditions expose weaknesses in a formula faster than a climate-controlled gym does. The 80% chunky to 20% fine ratio, packed in a resealable hard container, was built with exactly these conditions in mind.
The takeaway
For Squamish specifically, prioritize chalk that resists humidity, gives you control over texture on small holds, and lasts through a longer outdoor session rather than needing constant reapplication.