DeFeet Slipstream Bootie
Slipstream Bootie
Slipstream Bootie
DeFeet

DeFeet Slipstream Bootie

$19.79 $21.99 10% OFF
In Stock

The DeFeet Slipstream Bootie blends wind-shedding aerodynamics with thermal protection. Made in the USA from 60% Cordura for abrasion resistance and long-lasting warmth.

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Available Options

Option Price Availability
DeFeet, Slipstream Bootie Black SM/MD $19.79 In Stock
DeFeet, Slipstream Bootie, Shoe Cover, Neon Yellow, SM $22.49 In Stock
DeFeet, Slipstream Bootie, Shoe Coverc, Neon Yellow, LXL $22.49 In Stock
DeFeet, Slipstream Bootie, Shoe Cover, Process Blue, SM $22.49 In Stock

Product Details

Overview & Technology

Purpose-built for warmth and speed. The DeFeet Slipstream Bootie (MPN: SSBK101) was developed to do two things well: retain heat on chilly rides and reduce drag through a low-profile, streamlined fit. Constructed from a performance blend — 60% Cordura, 30% Nylon, 10% Lycra — the fabric offers a balance of abrasion resistance, shape retention, and stretch for a snug, aerodynamic silhouette. The Cordura content gives the Slipstream real-world durability where booties rub against pedal pins, treads, or trail debris, while the Nylon and Lycra combine for quick recovery and a close conforming fit. Because these materials are inherently lightweight, the Slipstream delivers insulation without bulk—ideal when you want warmth without compromising pedal feel or shoe fit.

Key Features

Functional details that make a difference on the road: • 60% Cordura shell for abrasion resistance and lasting shape. • 30% Nylon + 10% Lycra for flexible, low-profile stretch and comfort. • Streamlined cut to reduce aerodynamic drag and minimize flapping at speed. • Made in the USA — quality construction and consistent sizing. Beyond materials, the Slipstream focuses on practical performance: easy on/off stretch, a slim toe and ankle profile that tucks neatly under your jacket or pant leg, and a finish that sheds light moisture while keeping wind chill out. Available in high-visibility Neon Yellow and vivid Process Blue as well as classic Black for mixed-weather visibility options.

Fit & Compatibility

Low-profile fit for most cycling shoes. The Slipstream is designed to slip over road and mountain cycling shoes without adding significant bulk. The elasticized opening and Lycra content let it conform to shoe contours, keeping a snug fit around the toe box, vamp, and ankle. While the Slipstream works with both recessed and road cleat systems, we recommend verifying fit over your specific shoe model before long rides—some very bulky winter boots may be too large. Available sizes include SM/MD and L/XL; consult DeFeet sizing or try them on over your shoe to ensure clearance for pedal engagement.

Who It's For

Road riders who want fast, cold-weather comfort. If you chase speed on cool mornings or want a no-fuss overshoe that trims drag for crits, group rides, or fast training laps, the Slipstream is engineered for you. It’s also great for commuters who need extra warmth without sacrificing shoe fit or pedal feel. Choose the Neon Yellow or Process Blue variants for increased visibility on low-light rides, or classic Black for a stealthy, club-style look. The Slipstream is a versatile pick for riders seeking a balance of aero performance, warmth, and durability in a compact overshoe.

Key Features

  • ✓ 60% Cordura shell for exceptional abrasion resistance and durability
  • ✓ 30% Nylon plus 10% Lycra for stretch, shape retention and fit
  • ✓ Low-profile, aerodynamic cut to reduce drag at speed
  • ✓ Made in USA construction for consistent quality and sizing
  • ✓ Slim toe and ankle profile fits under pants and jackets
  • ✓ Available Neon Yellow and Process Blue for added visibility
  • ✓ Lightweight warmth suitable for cool-to-cold conditions

Specifications

Fabric Technology 60% Cordura/30%Nylon/10%Lycra
Misc For warmth and aerodynamics
Color Black
Primary Color Black
Size SM
Core No

Product Identifiers

Vendor Item # SSBK101
UPC 682864070315

Frequently Asked Questions

What temperatures are these booties best for?

The Slipstream provides lightweight to moderate insulation—ideal for cool to chilly conditions (early spring/fall and mild winter days). They reduce wind chill and add warmth, but are not heavily insulated winter boots for extreme cold.

Will the Slipstream fit over my road shoes with cleats?

Yes. The Slipstream is designed to slip over most road and mountain cycling shoes. Because it’s low-profile, it maintains pedal feel. We recommend checking clearance on bulkier winter boots and ensuring proper pedal engagement before a long ride.

How should I care for these overshoes?

Machine wash cold on a gentle cycle or hand wash, then air dry. Avoid high heat and tumble drying to preserve Lycra stretch and Cordura durability. Turn inside out for washing if heavily soiled.

Do these booties protect against rain?

The Slipstream sheds light moisture and wind, but it is not fully waterproof. Expect good performance in light showers and drizzle; for prolonged wet rides choose a waterproof overshoe with sealed seams.

What sizes and colors are available?

Available in SM/MD and L/XL. Colorways include Black, Neon Yellow, and Process Blue. Check DeFeet sizing charts for best fit over your shoe model.

Are these suitable for aero-oriented racing?

Yes—the Slipstream’s streamlined profile reduces drag compared with bulkier winter overshoes, making it a good choice for time trials, crits, and fast road efforts in cool conditions.

Buying Guide

When choosing cycling booties, prioritize fit and intended use. If you want aerodynamic gains and light insulation for cool days, pick a low-profile, stretch fit like the DeFeet Slipstream. Match the size to your shoe model—a snug, wrinkle-free fit gives the best aero performance and avoids pressure points. Consider your typical weather: for light drizzle or windy conditions the Slipstream is a strong choice, but for sustained wet or freezing rides opt for fully waterproof or heavily insulated overshoes. Also weigh visibility—Neon Yellow or Process Blue boost safety on dim mornings.

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