The Castelli Nanoflex Bib Short is made from water-repellent fabric, one that just seems miraculous. On a dry day it’s as warm and breathable as the normal Thermoflex fabric, but when it rains the water just runs off, thanks to the five-phase nanotechnology treatment. Castelli used an innovative construction that minimized seams to keep you as dry as possible. While it’s not 100% waterproof, it’s the best solution they’ve ever tried for staying comfortable in any conditions. The Kiss seat pad features an anatomic shape to conform to your body and ultimately increase your comfort. A continuously variable thickness eliminates the odd sensation of ‘thick here, thin there’ that you may have seen before with a dual-density pad. The brushed microfibre cover cuts down on chafing and features a bacteriostatic treatment to reduce the likelihood of saddle sores.