Skip to content

FREE shipping on orders over $99

Search
All Sports
Men Clothing
- Fashion Apparel
  
  T-Shirts & Tank Tops
  Hoodies & Crewnecks
  Polos & Button Ups
  Caps & Hats
  Pants
  View All
- Workout & Athletic Wear
  
  T-Shirts & Tank Tops
  Hoodies & Crewnecks
  Pants
  Shorts
  View All
- Swimwear & Boardshorts
  
  Competitive Swim
  Casual Swim
  Boardshorts
  Rashguards
  Beach & Sun Hats
  View All
- Socks & Underwear
  
  Underwear
  Athletic Socks
  Leisure Socks
  Outdoor Socks
  View All
- Outerwear
  
  Jackets
  Vests
  Pants
  Toques & Beanies
  Mitts & Gloves
  View All
- Essentials
Women Clothing
- Fashion Apparel
  
  T-Shirts & Tank Tops
  Hoodies & Crewnecks
  Zips
  Joggers
  Leggings
  View All
- Yoga & Workout Apparel
  
  T-Shirts & Tank Tops
  Hoodies & Crewnecks
  Sweatpants
  Sports Bras
  Shorts
  View All
- Swimwear
  
  Casual Swim
  Competitive Swim
  One Piece
  Two Piece
  View All
- Socks & Underwear
  
  Underwear
  Athletic Socks
  Leisure Socks
  Outdoor Socks
  View All
- Outerwear
  
  Jackets
  Vests
  Pants
  Toques & Beanies
  Mitts & Gloves
  View All
- Essentials
Kids Clothing
- Fashion Apparel
  
  T-Shirts & Tank Tops
  Hoodies & Crewnecks
  Shorts
  Pants
  View All
- Athletic Wear
  
  T-Shirts & Tank Tops
  Hoodies & Crewnecks
  Sports Bras
  Shorts
  View All
- Swimwear & Boardshorts
  
  Competitive Swim
  Casual Swim
  Beach & Sun Hats
  View All
- Socks & Underwear
  
  Underwear
  Athletic Socks
  Leisure Socks
  Outdoor Socks
  View All
- Outerwear
  
  Jackets
  Vests
  Pants
  Toques & Beanies
  Mitts & Gloves
  View All
- Essentials
Footwear
- Men's Footwear
  
  Running & Walking
  Sneakers & Lifestyle
  Hiking & Trail
  Training
  Sandals
  Boots
  Basketball
  Soccer
  Baseball
  Football
  Golf
  Rugby
  Curling
  Track
  Volleyball
  Badminton
  Essentials
  View All
- Women's Footwear
  
  Running & Walking
  Sneakers & Lifestyle
  Hiking & Trail
  Training
  Sandals
  Boots
  Basketball
  Soccer
  Baseball
  Football
  Golf
  Rugby
  Curling
  Track
  Volleyball
  Badminton
  Essentials
  View All
- Kid's Footwear
  
  Running & Walking
  Sneakers and Lifestyle
  Hiking & Trail
  Training
  Sandals
  Boots
  Basketball
  Soccer
  Baseball
  Football
  Golf
  Rugby
  Curling
  Track
  Volleyball
  Badminton
  Essentials
  View All
Fan Zone
Gear & Equipment
- Fitness & Homegyms
  
  Strength & Weight Training
  Speed & Core Training
  Cardio Machines
  Yoga
  Boxing & MMA
  View All
- Sunglasses
  
  Lifestyle Sunglasses
  Sport Sunglasses
  View All
- Outdoor Gear
  
  Coolers
  Drinkware
  Camping Furniture
  Cooking
  Snowshoes
  View All
- Bags, Backpacks & Luggage
  
  Lifestyle Backpacks
  Camping Packs
  Duffle Bags
  Luggage & Travel
  Lunch Bags
  View More
- Waterbottles & Hydration
  
  Stainless Steel Bottles & Mugs
  Hard Plastic Bottles
  Squeeze Bottles
  Running Hydration
  View All
- Electronics
  
  Wired Headphones
  Bluetooth Headphones
  Bluetooth Speakers
  View All
- Vehicle Racks
  
  Luggage Boxes
  Bike Racks
  Ski & Snowboard Racks
  Water Sport Racks
  View All
- Trainer Equipment & Supports
  
  Braces & Supports
  Tape & Accessories
  Whistles & Lanyards
  Sweatbands
  Mouthguards
  View All
Bikes & Scooters
- Bikes
  
  MOUNTAIN BIKES
  COMMUTER & HYBRID BIKES
  CRUISER BIKES
  EBIKES
  KIDS BIKES
  BMX BIKES
  ROAD & RACE BIKES
  View All
- Bike Parts
  
  Braking
  Chains
  Derailleurs
  Handlebar Grips & Tape
  Pedals
  Seats & Seatposts
  Tires & Tubes
  Wheels
  View All
- Bike Accessories & Clothing
  
  Bags & Racks
  Bike Trainers
  Cycling Clothing
  Gloves
  Helmets
  Locks
  Pumps & Inflation
  View All
- Scooters & Parks
  
  Scooters
  Wheels
  Decks
  Stems & Bars
  View All
- Waterbottles & Hydration
  
  Hydration Packs
  Waterbottle Cages
  Waterbottles
  View All
Shop by Brand
- Adidas
  
  Adidas
- Asics
  
  Asics
- Bauer
  
  Bauer
- Burton
  
  Burton
- CCM
  
  CCM
- Columbia
  
  Columbia
- DC
  
  DC
- Electra
  
  Electra
- Fanatics
  
  Fanatics
- Kuma Outdoor Gear
  
  Kuma Outdoor Gear
- New Balance
  
  New Balance
- Nike
  
  Nike
- Oakley
  
  Oakley
- ON
  
  ON
- Rawlings
  
  Rawlings
- Salomon
  
  Salomon
- Specialized
  
  Specialized
- Stanley
  
  Stanley
- Tentree
  
  Tentree
- The North Face
  
  The North Face
- Under Armour
  
  Under Armour
- Vans
  
  Vans
- Yeti
  
  Yeti
- View All
Pro Service
Sale

Search

Search

Account

Other sign in options Sign in

Orders
Profile

Account

Other sign in options Sign in

Orders
Profile

Your cart is empty

Have an account? Log in to check out faster.

Continue shopping

Men Clothing

Fashion Apparel
Workout & Athletic Wear
Swimwear & Boardshorts
Socks & Underwear
Outerwear
- Jackets
- Vests
- Pants
- Toques & Beanies
- Mitts & Gloves
- View All
Essentials

Ten Tree

Ten Tree

Women Clothing

Fashion Apparel
Yoga & Workout Apparel
Swimwear
Socks & Underwear
Outerwear
- Jackets
- Vests
- Pants
- Toques & Beanies
- Mitts & Gloves
- View All
Essentials

Learn more

Learn more

Kids Clothing

Fashion Apparel
Athletic Wear
Swimwear & Boardshorts
Socks & Underwear
Outerwear
- Jackets
- Vests
- Pants
- Toques & Beanies
- Mitts & Gloves
- View All
Essentials

Hoodies

Hoodies

Footwear

Men's Footwear
- Running & Walking
- Sneakers & Lifestyle
- Hiking & Trail
- Training
- Sandals
- Boots
- Basketball
- Soccer
- Baseball
- Football
- Golf
- Rugby
- Curling
- Track
- Volleyball
- Badminton
- Essentials
- View All
Women's Footwear
- Running & Walking
- Sneakers & Lifestyle
- Hiking & Trail
- Training
- Sandals
- Boots
- Basketball
- Soccer
- Baseball
- Football
- Golf
- Rugby
- Curling
- Track
- Volleyball
- Badminton
- Essentials
- View All
Kid's Footwear
- Running & Walking
- Sneakers and Lifestyle
- Hiking & Trail
- Training
- Sandals
- Boots
- Basketball
- Soccer
- Baseball
- Football
- Golf
- Rugby
- Curling
- Track
- Volleyball
- Badminton
- Essentials
- View All

Hockey

SKATES & STICKS
PLAYER PROTECTIVE
- GLOVES
- HELMETS
- PANTS
- ELBOW PADS
- SHIN PADS
- SHOULDER PADS
- JOCK & JILLS
- MOUTHGUARDS
- NECK GUARDS
- View All
GOALIE PROTECTIVE
BAGS, APPAREL & ACCESSORIES
TRAINING AIDS & PRACTICE JERSEYS
STREET & INLINE
OTHER GEAR
- HOCKEY OFFICIALS

Fan Zone

NHL
MLB
NFL
NBA
PWHL
CFL
WNBA
Team Canada
Local Hockey

Gear & Equipment

Gear & Equipment

Fitness & Homegyms
Sunglasses
Outdoor Gear
Bags, Backpacks & Luggage
Waterbottles & Hydration
Electronics
Vehicle Racks
Trainer Equipment & Supports

Shop by Brand

View All

All Sports

Badminton

Figure Skating

Pickleball

Snowboarding

Baseball & Softball

Football

Racquetball

Soccer

Basketball

Golf

Ringette

Squash

Bikes & Scooters

Hockey

Rugby

Swimming

Curling

Inline Skating

Skateboarding

Table Tennis

Darts

Lacrosse

Skiing - Alpine

Tennis

Disc Golf

Outdoor games

Skiing - Nordic

Volleyball

Home
Men
Clothing
Socks & Underwear
Underwear

Men - Clothing - Socks & Underwear - Underwear

Skip to results list

Filters

235 items

Sort

Sort Best selling

Featured

Most relevant

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

Column grid

Column grid

Filter

Sort

Sort Best selling

Featured

Most relevant

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

Saxx Volt Breathable Mesh Boxer Brief - My Handicap-Black

Saxx Volt Breathable Mesh Boxer Brief - My Handicap-Black

SAXX

Saxx Volt Breathable Mesh Boxer Brief - My Handicap-Black

$35.99
Saxx DropTemp Cooling Cotton Brief Boxer (2 Pack) - Rad Plaid/Dark Ink

Saxx DropTemp Cooling Cotton Brief Boxer (2 Pack) - Rad Plaid/Dark Ink

SAXX

Saxx DropTemp Cooling Cotton Brief Boxer (2 Pack) - Rad Plaid/Dark Ink

$64.99
Bn3th Pro Flex Max Boxer Brief - Pixel Matrix Black

Bn3th Pro Flex Max Boxer Brief - Pixel Matrix Black

BN3TH

Bn3th Pro Flex Max Boxer Brief - Pixel Matrix Black

$27.99
Pay on your terms

Make monthly payments with no late fees
Learn More
Bn3th Classic Essentials Boxer Brief - Heather Grey

Bn3th Classic Essentials Boxer Brief - Heather Grey

BN3TH

Bn3th Classic Essentials Boxer Brief - Heather Grey

$27.99
Bn3th Classic Icon Boxer Brief - Thick Stripe Navy

Bn3th Classic Icon Boxer Brief - Thick Stripe Navy

BN3TH

Bn3th Classic Icon Boxer Brief - Thick Stripe Navy

$35.99

Take $10 off your first order

Get exclusive updates from Ernie’s Sports Experts, early access to new releases, and special offers.

Email

Shop Shop

All Products
My Account
Gift Cards
Shipping

Prosport Prosport

What We Do
Who We Are
Team & Corporate Sales

Company Company

Locations, Hours, & Information
Pro Service
About Us
Our History
Community Support
Sustainable Purchasing

Support Support

FAQs
Return & Refund Policy
Privacy Policy
Terms & Conditions

Search

Search

Products

2UNDR Swing Shift Boxer Brief - Stroke Play

2UNDR Swing Shift Boxer Brief - Stroke Play

$34.99
2UNDR Swing Shift Boxer Brief - Ultraviolet

2UNDR Swing Shift Boxer Brief - Ultraviolet

Regular price $34.99 Sale price $16.99
2UNDR Swing Shift Boxer Brief - Upper Deck

2UNDR Swing Shift Boxer Brief - Upper Deck

Regular price $34.99 Sale price $16.99
2UNDR Swing Shift Boxer Brief - Vintage Muscle

2UNDR Swing Shift Boxer Brief - Vintage Muscle

Regular price $34.99 Sale price $16.99

Quick add