I'm a big fan of SLR Boost saddles. Having tried a Specialized Romin Mirror that is 3D printed, I had high hopes for the SLR 3D Boost. Unfortunately, like another reviewer, this saddle caused chafing down below. The 3D printed top is very hard, unlike the Specialized 3D saddles that are not soft, but "springey" that have enough give to make them comfortable. This 3D SLR is like sitting on a cheese grater for hours on the bike. If you move around on the saddle, it makes it even worse. Just imagine a cheese grater action, because that's how hard the 3d material is. I'm sticking with my SLR Boost Endurance which is one of the most comfortable saddles I've ever tried (and I've tried a lot of them).

Durch den 3d Druck ist der Sattel gut belüftet. Ich komme sehr gut mit dem Sattel zurecht, aber das ist bei Sätteln ja sehr individuell.

This was supposed to be the next big thing. Not for me. I hate, hate, hate this saddle. For first time in 34 years, a saddle has given me sores. It's on its way back to Amazon, and I'm putting my San Marco Aspide back on. Did I mention I hate this saddle?