The shape hasn't received any changes compared to the Pro X Superlight. The Pro X Superlight 2 continues to have the quintessential ambidextrous design, with a centered hump that gradually slopes down towards both ends, minimal curvature on the sides, and the front and rear barely flaring out. The main buttons are framed by ledges, which is a design that has been widely adopted ever since having been introduced on the Pro X Superlight, and feature ever so subtle comfort grooves. Interestingly, the minor bump on the right side is still present on the Pro X Superlight 2, which is the sole exception to an otherwise symmetrical design. Overall, a perfectly non-offensive and therefore highly agreeable shape.
As for grip styles, I'd say the Pro X Superlight 2 mostly suits palm and claw grip. It is a medium-sized mouse with a moderately pronounced hump, which should make it generally suit most hand sizes. For reference, my hands are 19 cm long and 10 cm wide, and I found the Pro X Superlight 2 very comfortable in claw grip.
Dimensions
This table includes the dimensions of the Logitech G Pro X Superlight 2 and several other ambidextrous mice. "Front height" denotes the distance between the base and main buttons. Measurements with two decimals have been taken with a caliper, while those with one decimal have been taken with a ruler. For a full list of all measurements taken, please refer to this sheet compiled by an esteemed community member.
Logitech G Pro X Superlight 2 Dimensions
Pro X Superlight 2
Atlantis 4K
Model O 2 Wireless
X2
XM2we
Viper V2 Pro
Base Length
11.3 cm
11.7 cm
12.0 cm
11.4 cm
11.6 cm
11.2 cm
Length (including overhang)
12.5 cm
12.33 cm
12.69 cm
12.02 cm
12.2 cm
12.5 cm
Front Height (lowest point)
1.2 cm
1.1 cm
1.1 cm
1.1 cm
0.9 cm
1.0 cm
Height (highest point)
3.91 cm
3.80 cm
3.80 cm
3.74 cm
3.83 cm
3.70 cm
Front Width (widest point)
6.08 cm
6.16 cm
6.17 cm
6.12 cm
6.16 cm
6.26 cm
Back Width (widest point)
6.27 cm
6.59 cm
6.64 cm
6.33 cm
6.49 cm
6.59 cm
Grip Width (narrowest point)
5.90 cm
5.96 cm
5.90 cm
6.02 cm
6.06 cm
5.79 cm
Below are some comparison shots with each of the measured mice: