Linen cooling briefs for the sauna. Advanced cooling technology meets premium linen engineering.
You're on the list.
We'll be in touch with founding member pricing.Founding member pricing for early sign-ups. No spam.
The Problem
Sauna use is one of the most well-evidenced tools for cardiovascular health, recovery, and longevity. But for men, prolonged heat raises temperatures where it matters most — and the consequences are real:
Standard cotton briefs and gel packs aren't built for this. Gel packs warm within 10 minutes. Cotton holds moisture and heat. Generic "fertility briefs" sell anxiety, not performance.
Helm exists because the sauna is a health tool — and your gear should be engineered to match.
Phase change material holds a stable cold temperature throughout your entire session. 20–30 minutes of consistent cooling — not the 10 you get from standard gel before it warms up.
Natural thermoregulation, moisture-wicking, antimicrobial. Linen outperforms cotton in every metric that matters in a sauna environment. Dries fast, breathes better, lasts longer.
Overlap-stitched fold-over pouch holds cooling packs securely during use. No metal hardware — nothing to heat up, snag, or fail. Easy pack removal between rounds.
| Standard gear | Helm | |
|---|---|---|
| Material | Cotton / elastane | 100% linen |
| Cooling | Gel packs (~10 min) | Advanced cooling packs (20–30 min) |
| Closure | Zip or velcro | Overlap-stitch (no metal) |
| Packs included | 2× gel | 2× advanced cooling (reusable, BPA-free) |
| Positioning | Fertility anxiety | Performance optimisation |
| Price | ~£47 | £49.99 |
100% linen. Advanced cooling packs included. Engineered for the full session.
£49.99
100% linen brief with overlap-stitch cooling pocket and 2× advanced cooling packs. Reusable, BPA-free, built for 20–30 minute sessions.
Join the waitlist for founding member pricing on our first production run.
You're on the list.
We'll be in touch with founding member pricing.Founding member pricing for early sign-ups. No spam.