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JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Metal Green

JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Metal Green

$ 27.99$ 22.95
Turn up the heat with these JUSTIN SIMON men’s trunks. Designed for confidence and comfort, they feature a bold color that commands attention and a snug fit that keeps everything perfectly...
SMLXL2XL
JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Ochre

JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Ochre

$ 27.99$ 22.95
Turn up the heat with these JUSTIN SIMON men’s trunks. Designed for confidence and comfort, they feature a bold color that commands attention and a snug fit that keeps everything perfectly...
SMLXL2XL
JUSTIN+SIMON XSJ01 Classic Bikini Color Ochre

JUSTIN+SIMON XSJ01 Classic Bikini Color Ochre

$ 23.99$ 19.95
JUSTIN SIMON XSJ01 Silky Bikini Elaborated in a stretch fabric specially designed to stay fresh and taut as long as you wear it, to the ergonomic fit that always seems to be...
SMLXL2XL
JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Peach Black

JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Peach Black

$ 27.99$ 22.95
Turn up the heat with these JUSTIN SIMON men’s trunks. Designed for confidence and comfort, they feature a bold color that commands attention and a snug fit that keeps everything perfectly...
SMLXL2XL
JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Peach Blue

JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Peach Blue

$ 27.99$ 22.95
Turn up the heat with these JUSTIN SIMON men’s trunks. Designed for confidence and comfort, they feature a bold color that commands attention and a snug fit that keeps everything perfectly...
SMLXL2XL
JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Peach Navy

JUSTIN+SIMON XSJ13 Cheeky Bulge Boxer Color Peach Navy

$ 27.99$ 22.95
Turn up the heat with these JUSTIN SIMON men’s trunks. Designed for confidence and comfort, they feature a bold color that commands attention and a snug fit that keeps everything perfectly...
SMLXL2XL
Unico 25050101104 Zelmur Briefs Color 99-Black

Unico 25050101104 Zelmur Briefs Color 99-Black

$ 37.95$ 23.75
Command attention with these bold black printed briefs by UNICO, featuring a striking zigzag pattern and a sleek, matte-black branded waistband. The contoured front pouch offers enhanced support, while the...
SMLXL2XL
JUSTIN+SIMON XSJBU02 Bulge Thongs Color Lurex Gray

JUSTIN+SIMON XSJBU02 Bulge Thongs Color Lurex Gray

$ 24.99$ 20.95
Bulge Thongs are made from silky soft microfiber fabric that is nothing short of pure luxury. Wear these undies when you want to make a statement; both in style and...
SMLXL2XL
JUSTIN+SIMON XSJ22 Cheek Briefs Color New Green

JUSTIN+SIMON XSJ22 Cheek Briefs Color New Green

$ 25.99$ 21.95
Cheek Briefs are made from super soft, stretch microfiber fabric that fits sleek and trim. The low rise, lean cut silhouette provides plenty of coverage with a sexy edge. Please...
SMLXL2XL
JUSTIN+SIMON XSJBU02 Bulge Thongs Color Pride Flag

JUSTIN+SIMON XSJBU02 Bulge Thongs Color Pride Flag

$ 27.99$ 22.95
Bulge Thongs are made from silky soft microfiber fabric that is nothing short of pure luxury. Wear these undies when you want to make a statement; both in style and...
SMLXL2XL
JUSTIN+SIMON XSJBU02 Bulge Thongs Color USA Flag

JUSTIN+SIMON XSJBU02 Bulge Thongs Color USA Flag

$ 27.99$ 22.95
Bulge Thongs are made from silky soft microfiber fabric that is nothing short of pure luxury. Wear these undies when you want to make a statement; both in style and...
SMLXL2XL
JUSTIN+SIMON XSJ22 Cheek Briefs Color Coquette

JUSTIN+SIMON XSJ22 Cheek Briefs Color Coquette

$ 25.99$ 21.95
Cheek Briefs are made from super soft, stretch microfiber fabric that fits sleek and trim. The low rise, lean cut silhouette provides plenty of coverage with a sexy edge. Please...
SMLXL2XL

Celebrate fall with our Plus Size Men’s Underwear collection—built to keep you confident, comfortable, and camera-ready from Halloween through Thanksgiving weekend. We curated breathable boxers, boxer briefs, trunks, bikinis, thongs, and jockstraps in extended sizes so your base layer looks smooth under costumes, travel outfits, and cozy holiday looks.

Start with the fit that moves like you. Boxer briefs deliver thigh-hugging coverage and a supportive pouch that stays put under jeans and chinos. Trunks offer a shorter leg for a modern line beneath fitted costumes and tailored pants. Prefer minimal coverage? Seamless bikinis and thongs vanish under catsuits and tights, eliminating lines in party photos while keeping you cool under layers. Many styles feature ergonomic pouches, stay-put leg openings, and soft waistbands that lie flat without pinching.

Fabric matters when your calendar is packed. Choose breathable cotton blends for everyday ease, cool-touch microfiber for long travel days, or silky modal for all-night comfort. Mesh panels add airflow for haunted-house queues and crowded dance floors, while moisture-managing finishes help you stay fresh through game day and airport lines. Flat seams and tag-free finishes reduce friction so you can focus on the fun.

Building a costume? Start with a smooth foundation. Wear a seamless trunk or thong under superhero suits, capes, or bodycon looks for clean lines on camera. Add a harness, garters, or a sheer layer for an easy after-dark upgrade. For Thanksgiving, keep it polished but comfortable: ribbed trunks under denim for a backyard football game, or soft boxer briefs beneath tailored pants to keep hemlines crisp in family photos.

Fit guidance made simple. Our size charts help you measure accurately, and product fit notes explain rise, leg length, stretch, and support level. If you’re between sizes, consider the fabric: cotton blends relax slightly with wear, while performance microfiber holds shape during high-movement days. Multipacks let you build a reliable rotation for long weekends and back-to-back events—stock up on neutrals for travel and add a bold color or lace accent for party nights.

Shopping stays streamlined and discreet. Use filters for fabric, rise, coverage, and support to narrow choices quickly. Checkout is secure, processing is quick, and packaging is discreet across the United States and Canada. Many orders qualify for free or priority shipping thresholds, and our customer service team is available 24/7 if you want a second opinion on size or style.

Care is easy: wash gently in cold water, skip fabric softeners, and lay flat to dry to preserve stretch, color, and fit. With thoughtful care, your favorites will feel great well beyond the holiday season.

Why shoppers love our plus size lineup:
• Inclusive sizing designed for real comfort and support.
• Seamless and performance options for costumes, travel, and photos.
• Budget-friendly multipacks and regular seasonal deals.

Own the season with a base layer that works as hard as your plans. Explore Plus Size Men’s Underwear now and build a fall lineup that looks smooth on camera and moves with you from spooky nights to cozy gatherings.