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Item # AAS0101

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Item # AAS0101


The oil slick bootie is not new, but Assos figured out how to make it better. The idea is simple; you need a stretchy, impermeable fabric with an opening in back for your foot, an opening on the bottom for your cleat, and an opening for your heel. This is Assos' rainBootie, a waterproof foot covering done as it should have always been done.

Originally, this style of shoe covering was a crossover from the early days of aerodynamic clothing. Coated skinsuits, gloves, and booties were thought to be faster than ordinary skintight fabrics, and similar materials were used in clothing for track events. One day, someone figured out the booties could work as rain protection. Problems were several. First was durability. They usually wore out quickly because they weren't designed for miles and miles of use. There was no zipper in back, no heel cutout, and the material wasn't as stretchy as plain spandex. A practical problem was that they were seamed down the middle, so they weren't much protection from wet roads.

Assos solved these problems. The material in the main body is their 434 stretch fabric coated with a polyurethane they developed that has incredible elasticity. The rainbootie has a rear-entry locking waterproof zipper to make entering and exiting easy. The toe, heel, and cleat areas are all covered in reinforced nylon. The seam no longer is in the center. There is now a front panel that runs back to the ankle and to the two smaller rear side panels. By eliminating the seam down the middle, the potential for leakage across the top of the foot is also eliminated. And furthering the sealed-in quality, there is a tight gripper around the top cuff keeping the water dripping in to a minimum.

The Assos rainBootie comes in Black, and the zipper has a reflective stripe alongside it. There are three sizes: 0, I, and II.

Tech Specs

61% polyamide, 22% polyurethane, 16% elastane
Recommended Use:
all season rainy conditions
Manufacturer Warranty:

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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