The fi’zi:k antares versus for chamaleons is a great saddle. It made friends with my butt pretty immediately after hopping up on the bike. The padding level is enough to take the edges off, but not mushy. It has a pretty light feel, and a simple but effective shape.
Unlike the Mantra, the fi’zi:k was not love at first sit, but it also gave me roughly the same riding sensations for up to an hour and a half of pedaling. The saddle is flat on the top and gives good support to the sit bones. It doesn’t ride up between my pelvic bones like the Mantra, either. At the same time, the center cutout is not as effective as the Mantra’s. It runs the whole length of the saddle, which means that my clitoris was happily supplied with proper oxygen throughout my whole ride. On the other hand it is a straight cut out with no flare so while my clitoris got some needed pressure relief, my labia had to bear the weight in return.
One other feature of the Antares bears noting: the nose is significantly wider than almost every other saddle I’ve ridden. I wasn’t bothered by the additional width. It felt comfortable and secure. Whether the saddle is made of particularly slick material or it is just tapered very well from butt to nose, I didn’t notice any additional friction from the wide saddle, just a presence in my mind that I’m sure would go away if I could put in a few more hours on it.
Over all I wish I could have had more time with the antares. I put in one 25K ride and two 10-15K rides and didn’t have any difficulties at all. The cutout protects my precious clitoris even if it isn’t as kind to my labia, and the back of the saddle is very gentle on my sit bones. It’s a great saddle and I would almost say it wins over the Mantra except for the fact that given the choice between risking sexual dysfunction (Antares) and risking saddle sores and ass bruises (Mantra), I have to go with the latter. The discomfort levels are close, but the location is always going to have to err in favor of the genitals. That said I highly recommend this saddle to any female riders serious enough to put in the time and the distance and interested in protecting their lady-bits along the way.