The fabric of these tights is very similar to spandex, and I think sweat could be a visible problem while wearing these. Also, while the seat fits well, the waist area is huge and creates a large gap or air pocket where the fabric is not tight above your hips.On the good side, the legs are long so the ankle area will not be above most riders' paddock boots, and the cut and stitching below the waist are well done.Because I thought the fabric and the issue with fit around the waist were serious problems that did not justify the high price for these tights, I returned them.I love the stretchy, medium thick fabric and high waist. I can wear them all through a Colorado summer and well into fall. The cell phone pockets are convenient. I dislike being between sizes. I'm 5'6", 175-180, moderately muscular, and bottom-heavy. The large size feels restrictive and segmented whereas an xl gaps at the top. At least they don't fall down! They arrived quickly and in good condition. If I could, I'd give 4.5 stars.Great fit, fabric & handy pockets.For reference I'm 5'4", #215. I bought the 1x, and could have definitely went down a size, maybe even 2 sizes. Love the pockets, and the material works well for warm muggy days, and cooler spring daysI want to love these like my other breeches but the grip has cracked & fallen off. I've never had that problem with any other breeches. Disappointed!These ended up being very large. Material is very thin, so only good for the summer. stretch band is comfy. pockets are a bit on the skinny side for small a i-phone, but fits.