Review on Santic Cycling Warmers Thermal Fleeced Sports & Fitness by Jason Caldwell

First of all, DO NOT BUY THIS ITEM FOR RUNNING OR RUNNING. He won't stay on his feet. Just as I was loading my bike onto the shipping stand and gathering supplies for the trip, they started falling off. I can't imagine them staying more than a few minutes during a run. The reason for the four star performance rating is that I think the silicone grip could have been a bit wider. That being said I just finished a 5 hour bike ride last weekend and apart from a small adjustment when I stopped for a break they were fine all day. Finding the right size is important and most reviews don't specifically address this. I'm 5'9" and 180 pounds. I fit perfectly a US size L. It should be noted that each of these pairs of leggings come in two different sizes: US and Chinese. My US size large was the Chinese Size very large. You can use this as a general sizing guide for purchase. Obviously they need to be snug, but making them too small will make them uncomfortable and unable to fit properly. Position and of course too large will cause them to fall. Temperatures during my trip were between 50 and 55F, partly cloudy, winds around 3 mph all day and I felt comfortable all round.You can use this as a general guide as to whether they meet your needs.The Advantage of using this type of product as opposed to winter breeches, at least at this time of the year, is that the temperature in the morning can oscillate into the 50's It's too chilly for me to just wear shorts too go, but temperatures can drop below freezing by midday. In the mid to high 60's you can just stop, take them off and be comfortable for the rest of the ride. Hope that helps.