[ sauna cooling for men ]
Design guided by science
The Oakman cryo system is clean, athletic boxer briefs with a removable cryo pack for sauna and post-heat recovery.
Design guided by science
The Oakman cryo system is clean, athletic boxer briefs with a removable cryo pack for sauna and post-heat recovery.
Sauna is one of the best things a man does for his health.
Sauna is one of the best things a man does for his health.
But what’s good for
your
is not good for your
testicles.
Published research has spent decades on this: heat lowers sperm quality and testosterone.
See the key studies we reviewed at The Vitality Review
But what’s good for
your muscleheartnervesbrainbreathingimmunitycirculationmuscle
is not good for your
testicles.
Published research has spent decades on this: heat lowers sperm quality and testosterone.
See the key studies we reviewed at The Vitality Review
Cooling is clinically shown to improve sperm quality.
Cooling is clinically shown to improve sperm quality.
Engineered
in every detail
The proprietary gel stays cold through a full sauna session and feels refreshing, never icy. Internal studies show that cooling is maintained for 30 minutes at 163°F (infrared) or 20 minutes at 190°F (traditional).
Placement is everything. The pack’s ergonomic shape and the cut of the boxer brief’s integrated gusset-pocket act as one system: secure contact, stronger cooling, all-day comfort.
We overfilled the cryo pack with gel so it feels soft and cushioned against the body. The central hinge lets the pack conform as you move and sit. No icy stiffness.
Heat stable to 400°F. Saunas stay below 200°F. We overbuilt the shell to ensure heat stability.
Engineered
in every detail
The proprietary gel stays cold through a full sauna session and feels refreshing, never icy. Internal studies show that cooling is maintained for 30 minutes at 163°F (infrared) or 20 minutes at 190°F (traditional).
Placement is everything. The pack’s ergonomic shape and the cut of the boxer brief’s integrated gusset-pocket act as one system: secure contact, stronger cooling, all-day comfort.
We overfilled the cryo pack with gel so it feels soft and cushioned against the body. The central hinge lets the pack conform as you move and sit. No icy stiffness.
Heat stable to 400°F. Saunas stay below 200°F. We overbuilt the shell to ensure heat stability.
Boxer briefs for all day heat, not just sauna
Fabric designed to dissipate heat
Kilts are optimal. If kilts aren’t your style, choose clean, natural fabric that moves with you.
Made from natural wood pulp.No microplastic-shedding polyester.
Heat from sitting
“Seated work is the main driver of increased scrotal temperature, raising it by 3°F.”
— Hjollund et al., 2002A roomy 3 inch gusset provides optimal air flow during seated work and movement.
Heat from training
Training raises core temperature, and compression clothing traps that heat around the scrotum.Scrotal temperature can remain elevated up to a few hours after exercise or heat exposure.
Oakman boxer briefs move with you and hold their shape, unlike cotton that bunches and chafes.
An extra fabric panel below the scrotum that provides breathability and an athletic fit.
Boxer briefs for all day heat, not just sauna
Fabric designed to dissipate heat
Kilts are optimal. If kilts aren’t your style, choose clean, natural fabric that moves with you.
Made from natural wood pulp. No microplastic-shedding polyester.
Heat from sitting
“Seated work is the main driver of increased scrotal temperature, raising it by 3°F.”
— Hjollund et al., 2002A roomy 3 inch gusset provides optimal air flow during seated work and movement.
An extra fabric panel below the scrotum that provides breathability and an athletic fit.
Heat from training
Training raises core temperature, and compression clothing traps that heat around the scrotum. Scrotal temperature can remain elevated up to a few hours after exercise or heat exposure.
Oakman boxer briefs move with you and hold their shape, unlike cotton that bunches and chafes.
It starts as wood pulp,
not petroleum.
Nylon and polyester are plastic, drawn from oil.This is 93% MicroModal, a natural fiber made from wood pulp, siro-spun for extra softness and durability in the wash, and dyed with bluesign®-approved dyes.
Roll over each highlighted word ↑Derived from natural wood and spun far thinner than cotton, Modal delivers a dry feeling through superior moisture control and exceptional softness.Its unique cross-section and high tenacity withstand repeated washing and drying. MicroModal is an extra-fine version that feels even softer and silkier while retaining the same durability.
An advanced spinning technique that twists two fiber strands together to create a smoother, stronger yarn that feels softer and resists pilling in the wash.
bluesign®-approved dyes meet rigorous standards for chemical safety and environmental responsibility. They’re free from harmful substances including carcinogenic azo dyes, heavy metals, and formaldehyde.This means cleaner production and safer contact with skin.
It starts as wood pulp,
not petroleum.
Nylon and polyester are plastic, drawn from oil. This is 93% MicroModal, a natural fiber made from wood pulp, siro-spun for extra softness and durability in the wash, and dyed with bluesign®-approved dyes.
Tap each highlighted word ↑Derived from natural wood and spun far thinner than cotton, Modal delivers a dry feeling through superior moisture control and exceptional softness.Its unique cross-section and high tenacity withstand repeated washing and drying. MicroModal is an extra-fine version that feels even softer and silkier while retaining the same durability.
An advanced spinning technique that twists two fiber strands together to create a smoother, stronger yarn that feels softer and resists pilling in the wash.
bluesign®-approved dyes meet rigorous standards for chemical safety and environmental responsibility. They’re free from harmful substances including carcinogenic azo dyes, heavy metals, and formaldehyde.This means cleaner production and safer contact with skin.
Why not cotton?
Material Health Gold)
“Organic” only means no pesticides were used while growing the cotton. It says nothing about the dyes, bleaches, or finishing chemicals applied later.
Why not cotton?
“Organic” only means no pesticides were used while growing the cotton. It says nothing about the dyes, bleaches, or finishing chemicals applied later.
It’s the pair you’ll want to
replace your drawer with.
Shop the cryo system
It’s the pair you’ll want to replace your drawer with.
Shop the cryo system
The cryo system engineered for heat, built from wood pulp instead of plastic.
Get access to our fall 2026 launch at Founding Member pricing. Plus the occasional study worth reading.
The cryo system engineered for heat, built from wood pulp instead of plastic.
Get access to our fall 2026 launch at Founding Member pricing. Plus the occasional study worth reading.
Oakman makes apparel and cooling accessories, not medical devices. Nothing on this page claims that any Oakman product improves fertility, testosterone, or sperm outcomes, and nothing here is medical advice. Statements about heat, cooling, and male physiology summarize published research; see the studies at The Vitality Review.
Cryo system launches
Late fall 2026
Put your name down for Founding Member pricing
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