Design Philosophy Endura's all new Women's Pro SL bib shorts have been designed from the ground up, driven by Endura's in-house roadies. By means of extensive testing, we are confident that these are going to be game changing for female cyclists the world around. DropSeat™. The radical DropSeat™ (DS) function, now with a stretch zip, provides a barely-there riding experience. This is particularly critical for winter riding when you are likely to be layered up and taking a comfort break can be a frustrating challenge. Endura has the perfect solution. Women's 600 Series Pad. Ergonomically designed to mould to the female form, the 3D multi density stretch pad incorporates Silver Dry® technology for enhanced hygiene. Multi-density foam construction with gel inserts provide excellent comfort for endurance riding.