The balls in AC bearings are withing 5/1

wide range

43g weight

It features a cutout for pressure relief

Cons: Probably a bit bulky for XC or light trail style riding

SQLab bib short ONE11 - L - Black - White PDP|PLP|Rail Material The balls in AC bearingsThe SQ Short ONE11 is equipped with the SQ Pad 11, a maximum 6mm thin and tight padding. The pad consists of a dense and at the same time breathable foam, which is equipped with a thin layer of TPE gel on the underside. This serves for the optimal absorption of the shearing forces arising during the pedalling movement. Another special feature of the SQ Short ONE11 are the removable SAS Tec Tripleflex protectors at the level of the femoral neck and hip