
45NRTH is launching major updates to two of the brand’s most recognizable footwear lines: Ragnarok and Wolvhammer.
The Wolvhammer is back, reimagined with a full-grain leather upper. The Ragnarok is updated with a new Clarino microfiber upper, offering a synthetic leather alternative for high-performance riding. Both shoes bring thoughtful updates from heel to toe, delivering your next great winter cycling footwear. Seasons may change, but the need for comfortable, durable winter cycling gear is forever.

Leather Wolvhammer
The Wolvhammer is the pinnacle of winter cycling footwear. These boots provide optimal protection from the elements for the conditions most fat bikers encounter. Designed for 0–25°F (–18–0 °C), the Wolvhammer is the perfect choice for an after-dark lap or an all-day snowy mission. Engineered for comfort and built to last, the leather Wolvhammer is ready for winter.
- New upper design with single-boot construction
- Same 200mg insulation for thermal protection.
- Premium leather upper material for good looks and protection on the outside, and a lining with a waterproof membrane on the inside for comfort and protection from the elements

- Two-bolt pedal system for ultimate connection to your ride
- Aero Gel foam pioneered by NASA provides non-compressible, ultra-lightweight insulation underfoot

- BOA dial system for optimized fit
Please note that one material in the Leather Wolvhammer was exposed to PFAS; as a result, these boots do not meet legal PFAS requirements in CA, NM, RI, and WA. While this product was not specified with DWR coating or any other restricted material, a supply chain issue resulted in small amounts being measured in the final product.

Ragnarok
Ragnarök BOA boots feature an updated Clarino microfiber upper and a redesigned neoprene ankle cuff for more comfort than ever. The Ragnarök is perfect for the unpredictable weather of late fall and early spring up north, or for chilly, damp winter rides where the roads are clear but temperatures are low.
- Updated upper with high-quality Clarino microfiber for a supple, leather-like feel.
- New lace path for BOA to strengthen the closure and secure a more secure fit.

- Gray EVA midsole with black speckles
- Neoprene ankle cuff for more flexibility.
- Same trustworthy rubber outsole with anti-slip microglass rubber blocks.

