They were actually bought due to their small size... not available in small, but as people found the M tiny, chanced it on that - and yes - the medium size is a perfect small (good for those with small slender hands).
Nice gloves - got a bit of padding on the inside, and a small strap on the front to get them on/off easily. Feels great on the hands while used on the (exercise) bike. Please take note they've not been tried outside, so cannot comment how they do when getting wet.