What fits in the Synapse 19 side pockets?
It's recommended that the TSS size 1 fits and I remember reading that TSS size 2 will fit, but it's very tight.
How about YSS size 1?
It fits height-wise, but it's round so has a much bigger footprint than the TSS. You could fit the smallest YSS in there, but not if it's even close to full. IMHO the size 1 TSS is the way to go.
Originally Posted by Chill
Wadded up Marmot Precip shell fits there, too (It's one of those items with which I check lots of pockets ...)