I had the Castelli Thermoflex arm warmers that I didn't like at first then grew to really love. After a couple years they started to wear out.
I went to buy these and picked the same size, but luckily tried them on first, at the urging of the sales guy. Thankfully I did, because these run WAY smaller than the Thermoflex. In fact I should have went 2 sizes up as the ones I bought are still a little short (M), and I'm an average 5'9 person.
They still work great, and are as versatile as the Thermoflex. They stay up, and there's no stupid Castelli iron-on that will peel off after two washes like they always do.
You'd think Castelli would go back to the drawing board on their sizing and their logo attachment. The internet is full of complaints regarding such.
But a good product nonetheless.
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