I wear these year round for my normal glove as they last forever and are great for heat and humidity as well, I just buy the pair and wear the left one when it is not raining. In about 4-5 years of wearing these, I have never seen them on sale or cheaper than $19.99.

On sale for $14.98
http://www.golfsmith.com/products/29.../Raingrip_Pair

Yep, getting ready for the golf season, and expecting rain. Also picked up a few more of my Corded grips on sale for almost 20% off as posted earlier.