Free Shipping on orders over $75
The men at Jack Health agreed: sweaty, uncomfortable days have to go. So, we created Jack’s Briefs with modal—a 100% plant-based fabric from the beech tree—to keep you cool and dry where it matters most.
Comfort fit waistband
Moisture-wicking & odor-fighting
Enhanced pouch support
No-roll waistband
Temperature regulating fabric
Material + Care
93% Modal / 7% Elastine
Machine wash cold with like colors.
Tumble dry low.
Imported
FAQ
How long will shipping take?
We offer free shipping on all briefs orders within Canada. Due to high demand for our modal fabric, shipping is estimated to take 3-4 weeks from the order date. Thank you for your patience!What materials are used in your underwear?
Jack’s briefs is crafted from 100% plant-based modal fabric, derived from the beech tree. This fabric is soft, breathable, and eco-friendly, providing a cooler, more comfortable option than traditional cotton or polyester.Why do Jack Briefs only come in black?
We chose black because it’s classic, versatile, and practical. Black not only looks sleek but also minimizes visible wear and staining over time, keeping your briefs looking fresh longer. Plus, it’s a color that works for everyone!Why did Jack Health launch an underwear line?
Jack Health’s mission is to support men’s health holistically, beyond just medications. Proper blood flow is essential for managing conditions like ED, and tight, non-breathable fabrics can cause heat and discomfort, impacting circulation. That’s why we created a plant-based, modal briefs designed for cooler, more breathable comfort that promotes better circulation.Can I return or exchange my underwear?
To keep your Jack Briefs in top condition:
Wash in cold water: Use a gentle cycle to maintain the softness and durability of the modal fabric.
Use mild detergent: Avoid bleach or harsh chemicals to protect the fabric.
Air dry: For best results, hang dry to maintain elasticity and prevent shrinkage.
Avoid high heat: If using a dryer, tumble dry on low heat.
I didn’t think underwear could make this much of a difference. They’re cool, comfy, and I’ve already bought more pairs.
Chris L
These are the best for athletic days! They keep me dry, cool, and I don’t have to worry about discomfort. Plus, the health benefits are a huge bonus.
Matt S
I’ve tried all kinds of underwear, but nothing compares to these. Comfortable, breathable, and they really do make a difference in staying cool.
Kevin D
