This beautiful shoe offers about as much performance in this price point as you can get your hands on. In fact, if it wasn't for the Sidi Drako, this would be a top of the line offering from Sidi. Compare and you you will find the Spider SRS far superior to many other manufacturers offerings at the top of the range.
The Spider SRS Carbon Mesh's upper is constructed of Sidi's proprietary Tecnomicro fabric. This synthetic fabric is thin and conforms to your foot for an exacting fit. It's also breathable, extremely stretch resistant and durable. Venting is accomplished with mesh inserts. A low profile caliper buckle and two Velcro provide precise closure. The durable Sidi Caliper buckle has a two-way ratchet for easy on-bike adjustment with incremental tightening and loosening. The adjustable Soft Instep Closure System and padded tongue eliminate pressure points. Located in the back of the shoe is a molded heel cup that helps stabilizes and support the foot. You steer from the heel, so adding this features serves up a ton of performance.
The Carbon Composite SRS Sole is super stiff for the ultimate in power to the pedal and stability over rough terrain. A small amount of flex is built into the toe area which makes the Spiders ideal for running and walking around in varied terrain. SRS (Sidi Replacement Soles) soles are easily replaceable, which means the life span of the shoe is greatly increased.