ANSTRÄ

Engineered for sauna
+ cold plunge.

Merino wool · In development · 2026

Join the waitlist

Why
merino?

We tested every natural fiber and landed on merino as the backbone of our fabrics because of how well it regulates temperature, wicks sweat to keep you dry through longer sessions, and is naturally antimicrobial. It addresses every point of failure we found in conventional swimwear for contrast therapy.

The blend is merino and lyocell — lyocell adds lightness, softness, and moisture management without relying on synthetic treatments. The result is a garment that performs better the more seriously you use it.

01

Merino

Natural thermoregulation and inherent odor resistance without coatings.

02

Lyocell

Lightweight, breathable, and built for rapid wet-dry cycles.

03

Superfine

Comfortable directly against skin at heat. No itch, no texture compromise.

04

No coatings

Performance through fiber, not surface treatment. Nothing to wash away.

The first pieces · Pre-launch

M.01 Men's Shorts A sauna-specific short built for repeated heat, plunge, and movement. $145
W.01 Women's One-Piece A streamlined one-piece designed for thermal performance and understated support. $225
W.02 Women's Two-Piece A two-piece system designed for comfort, function, and repeated contrast use. $200
A.01 Sauna Hat Designed to manage heat exposure during longer sessions. $65

Reserve
your place.

We are in pre-launch, still refining the first release. Join the list to get early access, founding-member pricing, and first pick of colorways. Your interest also helps us understand which pieces and use cases matter most.

01 Merino & Lyocell — not treated polyester
02 Cut for heat, plunge, and repeated wear
03 Founded by someone who saunas every week
Women's One-Piece
Women's Two-Piece
Men's Shorts
Sauna Hat
All of the above

No spam. Just early access, launch news, and first access.

You're
on the list.

We'll let you know first when ANSTRÄ is ready. Until then, follow the wider practice through Saunophile.

"Sauna is not a trend. It is a practice."

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ANSTRÄ Merino wool swimwear engineered for sauna + cold plunge · 2026