Bundle & Save with Pack Builder. Shop Now.
Rewards
Find Your Style
Our Story
Account
Cart Bag
Bag
New & Trending
SHOP BY FABRIC
ACE
AIRKNITˣ
SILVER
WARMKNIT
SHOP BY ACTIVITY
Work
Travel
Relax
Activewear
Featured
New Arrivals
40
Bestsellers
Pack Builder
Holiday Shop
Shop All Products
Holiday Shop
Shop Now
Mack Weldon x Blade
See Collab
Tops
SHOP BY FABRIC
ACE
AIRKNITˣ
SILVER
WARMKNIT
SHOP BY ACTIVITY
Work
Travel
Relax
Activewear
Tops
T-Shirts & Henleys
Sweaters & Sweatshirts
Half & Full-Zips
Jackets & Vests
Button Ups
Polos
Shop All Tops
The Holiday Shop
Shop Now
New! Save on your Favorite Shirts
Build Your Pack
Bottoms
SHOP BY FABRIC
ACE
AIRKNITˣ
SILVER
WARMKNIT
SHOP BY ACTIVITY
Work
Travel
Relax
Activewear
Bottoms
Joggers & Lounge
Pants
Shorts
Swim
Shop All Bottoms
Fabric Innovation
Learn More
Find Your Style
Start Quiz
Underwear
SHOP BY FABRIC
18-HOUR JERSEY
AIRKNITˣ
SILVER
WARMKNIT
SHOP BY ACTIVITY
Work
Travel
Relax
Activewear
Underwear
Boxer Briefs
Boxers
Briefs
Trunks
Long Johns
Undershirts
Shop All Underwear
Save on your Favorite Underwear
Build Your Pack
The Holiday Shop
Shop Now
Accessories
SHOP BY FABRIC
ACE
AIRKNITˣ
SILVER
WARMKNIT
SHOP BY ACTIVITY
Work
Travel
Relax
Activewear
ACCESSORIES
Socks & Slippers
Bags & Wallets
Hats, Gloves & Scarves
Gift Cards
Shop All Accessories
Stock Up on Socks
Shop Now
New! Save on your Favorite Socks
Build Your Pack
Bundle & Save
Holiday Shop
Sale
Mack Weldon
Product Information
Product Information
Product FAQs
Do you have a warranty?
Where is Mack Weldon made?
What size should I buy?
Do your products shrink?
What are XT2 Silver and X-Static?
What are the fabric contents for your products?
See all 9 articles
Ways To Buy
Are your products sold in packs?
Underwear
What is 18-Hour Jersey?
How does the underwear fit?
Why are the labels on the outside of the underwear?
Does your underwear have a fly?
Tops
How do the polos fit?
How do the t-shirts, henleys, and undershirts fit?
Bottoms
What's the difference between the swim styles?
How do the sweats fit?
How does the swimwear fit?
How do your pants and shorts fit?
Do you offer custom inseams?
Accessories
What do the Ion Accessories look like on the inside?
How do the socks fit?
What are the sizes of the accessories?