S1
KLAFSThe world's first and only expandable sauna: at the press of a button the S1 extends from a retracted depth of just 24 inches to a full 63-inch cabin in about 40 seconds, then collapses to wardrobe depth when you're done — the answer to the apartment problem. SANARIUM climate system runs five distinct heat-and-humidity modes from a dry Finnish sauna to tropical steam, with the VARIUS heater hidden under the bench, app and touchscreen control, Bluetooth speakers, and dimmable backrest lighting. Available in three sizes; winner of the Red Dot, iF, and German Design awards. Arrives Summer 2026.
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Related Protocols
Structured routines that use this product or are in the same category.
Cold Exposure Protocol
Structured daily cold water immersion for recovery, stress tolerance, and mental discipline. 2–5 minutes at 39–55°F. Consistent timing, consistent temperature. The discomfort is the point.
Sauna Rotation Protocol
A structured weekly sauna rotation that alternates session length, temperature, and contrast to maintain heat adaptation without plateauing. Most people sit in the sauna the same way every time — this protocol forces variation.
Post-Workout Recovery Stack
A layered recovery sequence that moves from percussion to compression to cold in the 45 minutes after training. Each modality targets a different system — soft tissue, lymphatic, and inflammatory. Do this after hard sessions and you'll notice the difference the next morning.