What sets apart Castelli's entry level Women's Prima Cycling Shorts from the competition? It's the attention to detail and incredible obsession in giving you the finest levels of comfort with no compromises just because of price. It starts with their Pro Dry Soft fabric, an incredibly smooth and supportive material that hugs your muscles while letting you pedal with ease. It feels cool and luxurious against the skin and is quick to pull moisture away, so you don't feel clammy. This material is tailored into an anatomic fit which feels just right when you're on the bike. To the waist, the deep waistband spreads pressure evenly for greater comfort, while the Giro3 leg grippers see the grip material woven into the fabric for incredible comfort and durability. Speaking of durability, the Prima waist shorts are built to last, as perfectly demonstrated by the stitched in reflective inserts, ensuring there are no glued-on items that can peel off. KISS Air2 Seat Pad When you're riding, you'll benefit from the on-the-saddle comfort from Castelli's women's specific KISS Air2 seat pad. Next to the skin, you'll enjoy the luxury of Castelli's softest ever surface fabric, delivering immediate comfort. Seamless construction and stretch fit all but eliminate chafing as you push the watts. Next comes the dual-density, variable thickness padding. This sees maximum density and thickness across the ischial zone, reduced thickness around the perineum and then minimum thickness at the edges. This is all wrapped up in an anatomically shaped pad for optimal comfort for any distance.