NTHN Cotton Boxers

NTHN boxers are engineered for a high-performance, locked-in feel and runs small.

For a standard athletic fit that hugs the legs while leaving the crotch zone loose and breathable, choose one size up.

For the ultimate "freeball" experience with maximum airflow, choose two sizes up.

Expect minor natural shrinkage after the first wash.

All the more reason to size-up to achieve a long-term fit that suits your fitting-preference!

Our Bio-Shield Layer™ is 100% GOTS-certified organic cotton - zero synthetics touching your crotch.

NTHN uses smart material engineering:

• Main fabric: 95% organic cotton / 5% spandex (provides stretch, fit, and movement)
• Bio-Shield Layer™: 100% organic cotton (internal lining that makes direct contact with your balls)

Most brands put polyester-blend fabric directly against your skin. We don't. The 5% spandex gives you performance in the waistband and outer structure, while pure organic cotton protects your most sensitive zone.

Performance where you need it. Protection where it matters.

Treat them like performance equipment. Wash on cold and air dry.

Avoid high heat to preserve the natural fiber integrity and prevent the breakdown of the organic cotton.

It’s the gold standard for purity. GOTS (Global Organic Textile Standard) guarantees 100% organic fibers and zero toxic processing.

No pesticides, no heavy metals, and no synthetic residues.

Standard underwear is made of polyester and nylon - literally petroleum-based plastics.

These materials leach Endocrine Disrupting Chemicals (EDCs) that mimic estrogen.

We’ve eliminated the plastic in the contact zones that matter.

Your scrotal skin is one of the most absorbent parts of your body.

Synthetic fabrics trap heat and leach chemicals that compete with your androgen receptors.

Our 100% organic cotton maximizes breathability and eliminates chemical interference, helping to support your T-level production.

Test 1, Keep 1: Open and wear your first pair. If the fit isn't right, keep it or gift it to a friend - no return required.

Simple Exchange: Ship your remaining unworn and unopened pairs to our closest warehouse. We’ll ship your new sizes for a small re-shipping fee.

30-Day Refunds: We offer full refunds on all unworn boxers requested within the 30-day returns period.

Depends on your location!

We advise a waiting time of 12 days to the USA, just to manage expectations as transparently as possible.

Delivery to the UK is typically 7-9 days

Rest of world s typically 8-14 days

We refuse to compromise your biological integrity for a lower price point. While mass-market brands use cheap, plastic-heavy fabrics that leach endocrine disruptors, we invest into GOTS-certified organic purity and elite manufacturing at greater cost.

You aren't just buying underwear, you're investing in a plastic-free environment designed to protect your hormonal health and performance.