Polyver of Sweden

SL25

Product USP

Comfortable from +15°C to -25°C, fully waterproof, and feeling as light as wearing a pair of sneakers.

Primary innovation features: 

Waterproof – Most membranes struggle to perform well under low pressure, such as walking through wet grass or riding a bicycle on a rainy day. The innovative design of the SL25, with a fully enclosed front combined with Cli-Tech technology, ensures that the boots are truly waterproof.

Thermal Control – During winter, in public transportation, stores, restaurants, and many workplaces, people typically remove their jackets indoors, but they keep their shoes on. The SL25 has been tested to be comfortable even in temperatures above 20°C and as low as -25°C. This is part of the Scandinavian expertise from Polyver of Sweden.

Grip & Comfort – The SL25 features an extra-soft Icelandic rubber shell for superior performance in low temperatures. The SL25 Sport series includes additional fiberglass inserts for enhanced ice grip. The sole is filled with low density shock absorption organic polymer for best insulation, lightness and comfort.

Breathability – The lining uses 3D foam materials inspired by ski boots, designed to manage moisture and dry exceptionally fast.

Design – Minimalistic and functional design, following the pure tradition of Scandinavian living.

Intended specific end use:

Outdoors enthusiasts, Men and women, living in cities.

Fun facts or backstory:

Polyver asked themselves: "How is it that brands from Australia have become so popular in Scandinavia or in 'uncomfortably cold' places like London or Amsterdam?" Many of these products aren’t designed for what we need most—insulation and waterproofing—but they offer a unique comfort experience. With the SL25, Polyver done just that: created a signature comfort experience with Scandinavian specifications.

Designed by: Polyver of Sweden
Product material: Organic Polymer PU with Icelandic soft rubber sole. Ortholite Hybrid footbed.
Weight: 650g
Available in stores: August 2025
Recommended retail price: 220€