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Inner Boot Liners

FREEZE-OUT utilizes cutting-edge membrane laminate barrier technology to block wind and retain warmth while allowing internal moisture to escape. Brushed poly interior facilitates moisture transfer and is supremely comfortable. Thin and light with flat-lock seams to layer easily under riding apparel and equipment. Extend your riding comfort with FREEZE-OUT accessories.


  • Advance barrier technology seals out cold air and wind
  • Brushed poly interior wicks moisture and feels great against skin
  • Stretch and recovery for a comfortable fit without binding
  • Flat-lock seams are comfortable and layer easily
  • Elasticized openings seal out the elements

Sizing: Length of Sock

  • SM: 10"
  • MD: 11"
  • LG: 12"
  • XL: 13"
  • 2XL: 13.5"
  • 3XL: 14"
  • 4XL: 15"
4.1 / 5.0
100 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Bang for the Buck
4.7 / 5
Would Purchase Again
4.5 / 5
4.9 / 5
4.7 / 5
4.4 / 5
Would you recommend?
Yes (9)
No (1)
Great Price on a good product
Used these under my Sidi Vortice Air on a cool day - feet stayed warm and dry all day long. It was not a bitterly cold day, but without these my feet would have been frozen. The long periods of heat here in Central Texas call for perforated leather, so these all for all year around comfort.

PROS: Easy of use, price

CONS: Material may wear easily

November 17, 2011
good warmth...helps my toes
they help keep the morning frost off my toes.
not too bulky, like wool sox.
i even wear them around the house to keep my feet warm.

PROS: Versatile, Easy To Use, Lightweight

BEST USES: Long Rides, Being A Couch Potato
February 14, 2013
Great for cold-weather riding
Prior to using them, I didn't think they went far enough up my leg. But, after using them in cold weather - my feet and legs felt very comfortable. I'll never go on a cold ride again with out these liners.

PROS: Keeps You Warm, Easy To Use, Durable, Lightweight, Versatile

BEST USES: Street, Long Rides
November 16, 2013
Warm feet
They seem to work just as they should. I wear them over heavy socks and I do see a significant difference on cold mornings.
February 16, 2012
Worked really well
My feet did get cold but not hurting cold, was riding in 30-44 degrees all day and these boot liners did the trick!

PROS: Lightweight, Easy To Use

BEST USES: Street, Long Rides
January 15, 2013
Good quality, great insulator
I would recommend this and all freeze-out products, take advantage of the closeout price, they are worth the regular price as well

PROS: Versatile, Durable, Lightweight


BEST USES: Long Rides, Street, Works Well With Race Boot
September 14, 2012
Perfectly Warm!
I ride an hour and a half to work and then again home. On very cold mornings I wear all my Freeze-Out clothing (socks, long johns, shirt, and jacket) and have absolutely NO problem staying warm! The socks I wear over regular socks, inside my sneakers. I do NOT need to wear warm shoes or socks, even in freezing temperatures.

PROS: Very warm, Lightweight

CONS: Difficult To Use

November 5, 2012
toasty toes
All of these products do not shrink..easy..wash and dry no speacial instructions, love that it does not shrink. and THAT THEY KEEP YOU WARM And are light but still wear socks underneath but no need for bulky socks

PROS: Thin Light Warm, Easy To Use, Versatile, Non-shrinking, Durable, Lightweight


BEST USES: Long Rides, Street, Cold Weather Windy
January 7, 2013
Great to keep your feet warm
These work great if you don't have riding boots. I put them over my socks, then put my shoes on and they keep my feet warm, so far in weather down to the high 20's.

PROS: Lightweight, Versatile, Durable, Easy To Use

BEST USES: Long Rides, Street
January 14, 2014
Great liners
These boot liners are excellent. light and small enough to pack and use when needed and they really take the edge off. I also purchased the glove liners and "long-johns" as well as the neck guard. I'm very pleased with all of these. I'm going to try the neck guard and glove liners up skiing.

PROS: Versatile, Lightweight

January 17, 2014
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Browse 3 questions Browse 3 questions and 8 answers
How do sizing work?i have a size 9.5 foot, what size would that be, large, xlarge??
A shopper on Oct 17, 2016
BEST ANSWER: Hello, the site has a sizing chart at the bottom based on your sock size. I would recommend and Small for you. I have the large size and it fits me well - I have size 12 feet. Hope this helps!
What size shoe does a 2xl fit?
A shopper on Dec 28, 2016
BEST ANSWER: I wear a 10 & 1/2 to 11 so I found it a bit large. That's what I'd wanted to wear other socks underneath.
what size of feet is a large?
A shopper on Dec 7, 2017
BEST ANSWER: I wear size 10.5/11 mens, and large is perfect.
Product Style Item # Manufacturer Product # Availability
Black / SM 1137793 BLFRZ9-BZ-SM In Stock: Ships within 24 hours
Black / MD 1137794 BLFRZ9-BZ-MD In Stock: Ships within 24 hours
Black / LG 1137795 BLFRZ9-BZ-LG In Stock: Ships within 24 hours
Black / XL 1137796 BLFRZ9-BZ-XL In Stock: Ships within 24 hours
Black / 4XL 1137797 BLFRZ9-BZ-4X Out of Stock
Black / 2XL 1137798 BLFRZ9-BZ-2X Out of Stock
Black / 3XL 1137799 BLFRZ9-BZ-3X Out of Stock