Classics Boxer Brief
The modal boxer brief built around BN3TH's patented MyPakage Pouch Technology is the product that made the brand's name, sold solo or in multipacks and offered in its signature camo prints.
Explore Classics briefs →Brand profile
BN3TH
Vancouver men's underwear brand, formerly MyPakage, known for boxer briefs with a patented three-dimensional supportive pouch.
VancouverOrigin
MenswearFocus
Athleisure / SportswearStyle
$Price
What to know about BN3TH
Everything hinges on the pouch
The whole line is built around patented MyPakage Pouch Technology, a three-dimensional pouch meant to keep things in place without shifting or chafing.
Built for boardshops, not boutiques
Cuts and fabrics — modal, merino, performance knits, long-leg trunks — are aimed at snowboarding, cycling and gym use, and it sells through outdoor and surf retailers.
Formerly MyPakage, same product
The Vancouver label launched in 2010 as MyPakage Apparel and rebranded to BN3TH, so older reviews and the pouch tech name still refer to the same underwear.
The pieces that define BN3TH
Shop BN3TH →Shop BN3TH
Shop all BN3TH ↗Available atREVOLVR Menswear
How BN3TH fits
Overall fit
true to size
Most wearers find BN3TH boxer briefs true to size, with the signature pouch providing a snug, supportive fit without excess fabric.
Tip: Order your usual waist size; the pouch adds support rather than changing sizing.
Medium confidence · based on 8 sources
By category
| Category | Runs | Shape | Size advice |
|---|---|---|---|
| T-shirts & graphic tees | true to size | regular | Take your normal size for a standard fit. |
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
If you like BN3TH
94% matchSaxx
The other Vancouver pouch-underwear brand, BallPark cut
What changes: Bigger marketing budget, broader loungewear/tee range
78% matchMeUndies
MicroModal DTC underwear, louder prints and subscriptions
What changes: No support-pouch engineering; fashion-print led, unisex
72% matchPair of Thieves
Mass-price men's basics kit: socks, briefs, undershirts
What changes: Cheaper, no patented pouch or merino performance focus
70% matchBN3TH fit questions
Does BN3TH run big or small?
BN3TH fits true to size. Order your usual waist size; the pouch adds support rather than changing sizing. Most wearers find BN3TH boxer briefs true to size, with the signature pouch providing a snug, supportive fit without excess fabric.
How does BN3TH fit?
Most wearers find BN3TH boxer briefs true to size, with the signature pouch providing a snug, supportive fit without excess fabric. Overall shape: supportive with contoured pouch.
How do BN3TH t-shirts & graphic tees fit?
BN3TH t-shirts & graphic tees fits true to size. Take your normal size for a standard fit. Shape: regular.
Brand facts
BN3TH (pronounced "beneath") is a Vancouver men's underwear and base-layer label, formerly known as MyPakage Apparel. Its core product is the boxer brief built around patented MyPakage Pouch Technology, a three-dimensional pouch designed to hold everything in place without shifting or chafing. The range spans classic, trunk and long-leg cuts in modal, merino and performance knits, plus base layers, socks and tees aimed at snowboarding, cycling, gym and workday use. Sustainability claims centre on lower-impact fabrics; distribution runs through bn3th.com, bn3th.ca and outdoor and surf retailers.
- Founded
- 2010
- Origin
- Vancouver, Canada
- Made in
- China, India
- Price
- $
- Typical prices
- Socks underwear $32–$32
- Focus
- Menswear
- Facts checked
- August 2026
- Styles
- Athleisure / Sportswear, Minimalist / Contemporary, Gorpcore / Outdoor