I just wanted to mention again that the crotch area is thick, stretchy mesh. From what I've noticed, open air areas like that don't hold as much heat in. Although, the silver material is nice. It's smooth and doesn't stick like some others I've tried. You can definitely move freely in these, though.
Smart bracelet Xiaomi Mi Smart Band 6 CN, black
50 Review
6 Pcs Reflective Bands: High Visibility Running Gear For Women Men - Safety Straps Bracelets For Running, Cycling & Walking
46 Review
Segmented Beaded Kids Jump Rope For Exercise And Outdoor Activities - Durable And Shatterproof - Easily Adjustable And Light Weight Skipping Rope For Kids
48 Review
Stay Comfortable And Stylish With DASUTA Sweatbands For Women And Men
55 Review