According to the Sock Guy website:
“SGX socks are designed with the elite athlete in mind and feature our exclusive Elite Performance Formula. The new SGX sock line provides a compression fit, performance ribbing, enhanced ventilation and a reduced friction profile. These socks feel great, look great, and with SockGuy’s signature Stretch-to-Fit sizing and reinforced toe & heel, SGX socks perform like no other. Guaranteed to be the most comfortable performance socks you’ll ever wear.”
While we’re not sure what they mean by “elite athlete”, we can honestly say that these socks are great for the non-elite among us, as well.
First and foremost, the material is thin without feeling flimsy. Since many cyclists do not like thick, bulky socks, this is a good thing. The second thing you notice about the fit of these socks is the compression fit. They don’t feel constricting, just a bit of compression. They simply feel great on your foot. You can feel the nice, even compression over your entire foot. 
Though the effects of compression on your foot might be debatable, the one effect that it has here is that it gives these socks an exceptionally close fit to the foot. There’s not much chance that this sock will bunch up and create hot spots during exercise. Additionally, the toe seams lie flat and don’t irritate or rub like some socks can. This is especially important for me as a scar on the top of my foot seems to get irritated easily for poorly placed toe seams.
Sock Guy indicates that these socks have enhanced ventilation and reduced friction profiles. This does seem to be the case. I wear these socks on a daily basis while riding, running, coaching soccer, running errand
s, you name it. I have done a lot while wearing these socks and have yet to develop a blister while wearing them or have my foot be clammy upon removal of the sock. They do everything that the company has indicated and more!
While just making a sock that has all these characteristics would be quite the feat (no pun intended!), Sock Guy offers their socks in a number of different flavors. They have an incredible array of designs and offer their socks in a broad range of cuff lengths, from no cuff to 3″ to 5″ and all the way up to knee high. So, if these socks become your favorites, you’ll have plenty to choose from!
We offer these socks in our online shop (http://synaptic-cycles-shop.myshopify.com/collections/cycling-clothing) so you may think we’re a bit biased, but that’s not the case. If you see us out and about, we will generally be wearing these socks (except with flip flops, not a good look!). We love them or we wouldn’t sell them. Give them a try. We think they’ll become your favorites, too. If you’d like to see other options made available, let us know and we’ll see if we can get some in stock. If you’re not interested in socks, and just want to hop onto a bike in OC/San Diego or Los Angeles, please contact us ASAP! 
