I ride in the Piedmont area of North Carolina, mostly trail riding but some schooling in outdoor arenas.  Our summers have plenty of hot, humid weather.  These Ice Fil tights are as good as it gets for keeping me comfortable in the saddle.  I love, love, love the pockets and belt loops. The pockets are deep, snug, and will hold a cell phone, keys, and treats.  These are not great for trail blazing because the material will snag on briars or other sharp shrubbery but are wonderful if your trails are for the most part, well cleared.  I am 5'0", 95 lbs. and the xs regular fit well.  I have hemmed one pair 2" but the second pair are okay.  The fit is flattering.