The Womenâs Fuse Pants are our lightest-weight waterproof pants, in a Pertex® Shield®+ fabric, designed to offer light-weight and packable all round protection. Key features include Â½ length YKK reverse coil size zips for easier use, knee articulations for greater freedom of movement, and an elasticated waistband for added comfort. Weighing only 185g (UK 12), the Womenâs Fuse Pants are designed to take up minimal space in your pack, yet offer complete protection against the rain, and are ideal for hill walking and general use in wet conditions. FIT NOTES (Regular Fit) These pants are designed in a regular fit. giving you the option of wearing them as an overtrouser on top of a baselayer.