Wølfgar BOA Cycling Boot
Wølfgar BOA Cycling Boot
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Step into Wølfgar, the world's most advanced winter cycling boot. We've combined decades of winter cycling experience with NASA-grade insulation materials for a boot that keeps feet warm and dry down to -25¼F. Wølfgar is a boot worthy of singletrack sessions or multi-day expeditions in the harshest winter weather.
- Our lightweight three-piece proprietary bottom assembly is compatible with both flat pedals and 2-bolt cleats, and features a rubber outsole with microglass lugs for traction on ice
- Waterproof materials and construction keep the elements out, while aerogel under the foot and over the toe block frigid air
- On the inside, Wølfgar's reflective thermal lining retains warmth, and a removable wool and faux-fur liner wicks moisture and insulates
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Note: This product contains per- and polyfluoroalkyl substances (PFAS). CA and NY have prohibited the sale of products containing PFAS effective 01/01/2025. All items containing PFAS will be removed from orders shipping to CA or NY on or after this date. To learn more, click here.








Feature Highlights
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Aerogel Insulation
Under the foot and over the toe, we use aerogel, an ultra-thin, compression-resistant and waterproof insulator, to block cold transfer from your pedals and from wind and snow.
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2-Hole MTN Shoe
This sole is designed to interface with a 2-bolt cleat for a secure ride, but is also compatible with flat pedals.
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Micro-Adjustable BOA Fit System
The BOA Fit System provides a secure, micro-adjustable fit that lets you fine-tune your comfort with precision. With just a simple twist of the dial, you can easily tighten or loosen the boot on the fly—even with gloves on. This quick, one-handed adjustability ensures consistent foot retention, improved power transfer, and all-day comfort no matter the conditions.
Additional Info
Supportive Documents
Size Chart
Footwear Sizing Assistant
Items needed: pen or pencil, large sheet of paper, tape-measure in millimeters. Measure wearing socks that you will most often wear with these boots. You will be taking measurements of both feet!
Step 1: Place a sheet of paper flat on the floor. Sit on a chair and place one foot on the paper. Apply pressure to your foot and trace the shape of that foot on the paper, carefully holding the pen vertically and perpendicular to the paper, tracing the foot as closely as possible without angling the pen in or out.
Step 2: Using a tape-measure, measure the distance from the very bottom of the heel to the top of the longest toe, as illustrated in points A and B on the diagram. It is necessary to measure in three-digit millimeters (for example: 292mm)
Step 3: Measure the distance spanning the ball of the foot at its widest point, as illustrated in points C and D on the diagram, using two or three digit millimeter measurements depending on the size of your foot.
Step 4: Repeat the above steps for your other foot and compare the measurements. Find the longer of the two length measurements between your right and left feet, as well as the wider of the two width measurements.
Step 5: Use the longest length measurement and the widest width measurement in three-digit millimeters to reference the chart and find the appropriate size.

Size | Length | Width |
---|---|---|
38 | 210.00–236.50mm | 85.00–92.00mm |
39 | 236.50–243.00 | 87.00–94.00 |
40 | 243.00–250.00 | 88.00–95.00 |
41 | 250.00–256.00 | 89.00–97.00 |
42 | 256.00–262.50 | 90.00–98.00 |
43 | 262.50–268.50 | 93.00–100.00 |
44 | 268.50–276.00 | 93.00–99.00 |
45 | 276.00–283.00 | 95.00–104.00 |
46 | 283.00–291.00 | 96.00–107.00 |
47 | 291.00–296.50 | 97.00–110.00 |
48 | 296.50–303.50 | 99.50–114.00 |
50 | 303.50–315.50 | 102.00–120.00 |
Care Instructions
Spot clean only. Do not soak or submerge. Do not force dry with direct heat.
Materials
Upper: Micro Suede, Nylon Mesh; Lining: Polyester; Outsole: Rubber
Warranty
45NRTH guarantees its products against defects in materials and workmanship for a period of twenty-four (24) months from the original date of purchase, subject to the limitations below. The proof of purchase date is the one that is specified on the retail sales receipt issued by the authorized 45NRTH dealer. This warranty does not cover the following:
- Damage due to improper assembly or follow-up maintenance or lack of skill, competence or experience of the user or assembler
- Products that have been modified, neglected, used in competition or for commercial purposes, misused or abused, involved in accidents or anything other than normal use
- Damage or deterioration to the surface finish, aesthetics or appearance of the product
- Normal wear and tear
- Minimal loss of studs on studded tires (it is common to lose 5-10 studs under normal use)
- Labor required to remove and/or refit and re-adjust the product within the bicycle assembly
This limited warranty is expressly limited to the repair or replacement of a defective product, at the option of 45NRTH, and is the sole remedy of the warranty. This limited warranty applies only to the original purchaser of the 45NRTH product and is not transferrable. This warranty applies only to 45NRTH products purchased through an authorized dealer or distributor. In no event shall 45NRTH be liable for any loss, inconvenience or damage, whether direct, incidental, consequential, or otherwise resulting from breach of any express or implied warranty or condition, of merchantability, fitness for a particular purpose, or otherwise with respect to 45NRTH products except as set forth herein. This warranty gives the consumer specific legal rights, and those rights and other rights may vary from place to place. This warranty does not affect your statutory rights.
TO THE EXTENT NOT PROHIBITED BY LAW, THESE WARRANTIES ARE EXCLUSIVE AND THERE ARE NO OTHER EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.