Ragnarök BOA Cycling Boot

Feature Highlights

Waterproof-Breathable Membrane
An ultra-thin sheet of microporous material behind our textile shells keeps you dry and warm in the harshest weather conditions. Our waterproof, breathable membranes stop liquid from the outside, but release vapor from the inside for thermal and moisture regulation.
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.
Anti-Slip Microglass Rubber
A rubber compound electrostatically aligned with microscopic glass fibers to create abrasive protruding shards, increasing friction on slippery surfaces such as ice, wet wood, wet linoleum, and wet metal found on many stairs and floors.
Low Cut Neoprene Ankle
The low-cut neoprene ankle cuff delivers a secure, flexible fit while protecting from the elements without restricting movement, keeping your ride comfortable in harsh conditions.

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Additional Info

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.

Diagram that illustrates footwear sizing. Points A to B represent length of foot, points C to D represent width of foot.

Size	Length	Width
36	210.00–226.00mm	75.00–80.00mm
37	226.00–233.00	77.50–82.50
38	233.00–239.00	83.00–89.50
39	239.00–241.00	85.00–91.00
40	241.00–246.50	86.00–93.00
41	246.50–254.00	86.50–95.00
42	254.00–261.00	88.00–96.00
43	261.00–269.00	90.00–98.00
44	269.00–275.00	93.00–99.00
45	275.00–283.00	93.00–103.00
46	283.00–289.00	95.00–108.00
47	289.00–295.50	96.00–112.50
48	295.50–301.00	98.00–117.50
50	301.00–316.00	102.00–122.50

Care Instructions

Spot clean. Avoid force-dried heat

Materials

Upper: PU Microfiber, Synthetic Rubber; Lining: Polyester Mesh

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.

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Ragnarök BOA Cycling Boot