We do not often revise bibs on Singletracks. Mountain bikers and packs have become largely synonymous, and bibs and tights ride with road cyclists. There is, however, a certain self-aggrandizement among mountain bikers, where we tell ourselves that we are too cool to wear bibs and that they are reserved for dorky, aero-conscious roadies.
While bags and casual clothing have done a lot to develop the sport, there are still many mountain bikers who prefer a bib, especially on long rides. The Last of Pearl Izumi Expedition PRO bib shorts is one hell of a bib with features mountain bikers can appreciate.
Driving details and impressions
the Expedition PRO bib shorts is now Pearl Izumi’s flagship bib priced at $265 and has the bells and whistles to match. It’s made from ‘Luxurious Italian PRO Transfer Fabric’, which is a blend of nylon, polyester and spandex. Some of these materials are recycled fibers.
The edges are laser cut. Pearl Izumi calls these “raw edges” and they eliminate a sewn hem, known to induce compression or a “sausage leg” where the fabric ends. These have a 10.5″ inseam, falling just above the knees for more coverage. Cargo pockets along the thighs are ideal for storing a phone or snacks. There is also a back pocket at the base of the straps.
All this means that Expedition’s interior is soft and inviting. When I first put the bib on, I thought I would need a big one. It takes a bit of wiggling to get everything where it needs to be; the legs located on the right, the crotch all the way up in the crotch. When everything was in place, I realized that I was actually still a medium. The Expedition PRO fits like a second skin. Once put on, the bib feels like home.
The silicone grippers are spread all over the inner leg base as mentioned, rather than a silicone ring for a raw edge, giving it its second skin feel. The base of the legs stays where it should be. Side cargo pockets seem like a no-brainer and I don’t know why every bib doesn’t have one. It’s absolutely the easiest place to get your phone, keys, cards or snacks, especially when you’re on the go.
Instead of a DWR coating on this fabric, Pearl Izumi uses something called PI Dry. A DWR layer will fade over time, causing water to seep through the material. PI Dry is said to provide permanent waterproofing. PI Dry should last at least 100 washes while DWR lasts around 20. The technology is integrated at the fiber level to “prevent the fabric from absorbing water”. Water flows very naturally from the fabric. It is still permeable, but it dries and breathes very well.
Finally, the main area to cover with the Expedition Pro bib is the Chamois in levitation. The name itself is downright promising. The Levitate is a dual density chamois. The bottom layer uses high-density foam, dampening the vibrations of the terrain. The top layer is an ultra high density foam, giving riders “more travel” to use above their saddle for a more forgiving ride.
The chamois has a relief channel, like a saddle would to relieve pressure from the perineum and the infinity edge that tapers away from the central area of the chamois for a more seamless look and feel. Often with a thick chamois you feel like a duck butt or diaper, where the foam doesn’t really hug your crotch and starts to bend and protrude.
Again, it took a minute of adjusting to get the bib and chamois in place, but it’s definitely one of the most comfortable chamois I’ve ridden. I didn’t move him on me. Pressing a finger on either side of the chamois makes it easy to feel the difference between the two densities and so far it has had me levitating – for lack of a better word – above the saddle, with no stitches hot or sticky.
Last but not least, the expedition has a drooping tail. This is probably something most runners have experienced; apply anti-chafing cream, pull on the bib and get ready to go out when doody calls. The Expedition Pro has a drop tail so you can pull the rear down, push your hips back and…you know. It’s not as comfortable as taking it off completely, but it should remind you not to get too caught up on Instagram because your friends are ready to roll.
Final Thoughts
If you’re reading this, it probably means you’re someone who puts in the miles and needs a bib that will support you along the way. $265 is no small amount of money, but the Pearl Izumi Expedition Pro Bib is a premium piece of kit ready to keep you comfortable on long rides. The inviting and durable fabric, the functionality of the drop tail and cargo pocket, and the good fit make this bib a great choice.
party towers
- Pockets and droptail
- Second skin fit
- Wicks water well and stays breathable
Advantages and disadvantages of Pearl Izumi Expedition Pro Overalls chamois