374 Reviews

The Boxer Brief

Starting At CAD $16
Starting At CAD $16

BUY 3+, Save 16%

BUY 5+, SAVE 36%

BUY 7+, SAVE 46%

Select Size

M

L

XL

XXL

HD Solids

Size Guide

Select a size

BUY 3+, Save 16%

BUY 5+, SAVE 36%

BUY 7+, SAVE 46%

Select Size

M

L

XL

XXL

HD Solids

Size Guide

Select a size

BUY 3+, Save 16%

BUY 5+, SAVE 36%

BUY 7+, SAVE 46%

Select Size

M

L

XL

XXL

HD Solids

Size Guide

Select a size

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

Material + Care

Material + Care

FAQ

FAQ

FAQ

374 Reviews

The Boxer Brief

STARTING AT CAD $16

Light as Air.

100% plant based modal fabric: Softer, cooler, and breathes better than cotton, nylon or polyester.

Light as Air.

100% plant based modal fabric: Softer, cooler, and breathes better than cotton, nylon or polyester.

Light as Air.

100% plant based modal fabric: Softer, cooler, and breathes better than cotton, nylon or polyester.

WHAT OUR CUSTOMERS ARE SAYING

WHAT OUR CUSTOMERS ARE SAYING

WHAT OUR CUSTOMERS ARE SAYING

I never realised how much temperature regulation mattered until I tried these. The comfort is unmatched, and I feel more comfortable throughout the day.

John W

I never realised how much temperature regulation mattered until I tried these. The comfort is unmatched, and I feel more comfortable throughout the day.

John W

I never realised how much temperature regulation mattered until I tried these. The comfort is unmatched, and I feel more comfortable throughout the day.

John W

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

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

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

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

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

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

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

Join the thousands of men who are taking charge and prioritizing their health.

© 2025 Jack&Jill Health Inc.
Jack Health is not a pharmacy or a drug manufacturer.

Join the thousands of men who are taking charge and prioritizing their health.

© 2025 Jack&Jill Health Inc.
Jack Health is not a pharmacy or a drug manufacturer.

Treatments

Company

Medications

Join the thousands of men who are taking charge and prioritizing their health.

© 2025 Jack&Jill Health Inc.
Jack Health is not a pharmacy or a drug manufacturer.

Treatments

Company

Medications