How to fit SQlab saddles
If you are looking at purchasing an SQlab saddle it's important to get the width of your sit bones first. This can be done by sitting on a stool with a sheet of corrugated cardboard between your butt and the stool. Maintain a straight spine and put pressure into the cardboard. Mark the two impressions.
You'll need to check your width in relation to the size on the fit chart. SQlab takes into account the position you have on the bike, as you get into more aggressive position on the bike (saddle to bar drop) your sit bones actually narrow and as you sit more upright you'll need a wider saddle.
If you want to do some comparisons with your existing saddle you can measure the effective width of your current saddle. Make sure you take into effect the rounded edges of your current saddle. See below.
Choose either the 612 Ergowave (Road or Gravel) or 611 Ergowave (Mountain) saddle. The 611 Ergowave has a flatter nose, slightly softer padding and Kevlar rear panels.
Active or Not
Now decide if you want the "Active" versions. Active versions have adjustable elastomers built into the rear saddle rails. It allows the natural side to side pelvic movement - just the same movement as we are walking. The "Active" is subtle and it also helps riders who's bodies are in perfect alignment (who's are?) and is ideal for riders who have leg length discrepancies. As a side effect (in a good way) of the "Active" system road and trail shock is dampened with your saddle being isolated between the elastomers.
Choose the rail option based on how much weight you want to save and your budget. The CrMo option is the heaviest but offers excellent value. S-Tube is the most popular. It's a Ti alloy which offers excellent strength and low weights. And of course carbon if you just love the look and weight of that magic material.