Plus Size

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Unico 26020100114 Suede Trunks Color 59-Gray

Unico 26020100114 Suede Trunks Color 59-Gray

$ 43.99$ 36.95
Meet your new go-to pair: these UNICO men’s trunks combine a sleek gray micro-print with an ultra-clean, modern look that works for every day. The fitted trunk cut delivers a...
SMLXL2XL
JUSTIN+SIMON XSJ03 Classic Thongs Color Baby Blue

JUSTIN+SIMON XSJ03 Classic Thongs Color Baby Blue

$ 23.99$ 19.95
XSJ03 Silky Sexy Thongs give you minimal coverage with a sporty, sexy look. It's made from a super lightweight microfiber that is ultra-breathable. The contour pouch offers lift and support. Ultra soft...
SMLXL2XL
JUSTIN+SIMON XSJ01 Classic Bikini Color Baby Blue

JUSTIN+SIMON XSJ01 Classic Bikini Color Baby Blue

$ 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 XSJ08 Classic Boxer Color Metal Green

JUSTIN+SIMON XSJ08 Classic Boxer Color Metal Green

$ 23.99$ 19.95
It features a subtle design that really shows up as it stretches to form a sleek, body-defining fit that nicely accentuates your contours. These full-coverage trunks are ideal for any...
SMLXL2XL
JUSTIN+SIMON XSJBU02 Bulge Thongs Color Ochre

JUSTIN+SIMON XSJBU02 Bulge Thongs Color Ochre

$ 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 Ochre

JUSTIN+SIMON XSJ22 Cheek Briefs Color Ochre

$ 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 XSJ03 Classic Thongs Color Ochre

JUSTIN+SIMON XSJ03 Classic Thongs Color Ochre

$ 23.99$ 19.95
XSJ03 Silky Sexy Thongs give you minimal coverage with a sporty, sexy look. It's made from a super lightweight microfiber that is ultra-breathable. The contour pouch offers lift and support. Ultra soft...
SMLXL2XL
JUSTIN+SIMON XSJ03 Classic Thongs Color Peach Black

JUSTIN+SIMON XSJ03 Classic Thongs Color Peach Black

$ 23.99$ 19.95
XSJ03 Silky Sexy Thongs give you minimal coverage with a sporty, sexy look. It's made from a super lightweight microfiber that is ultra-breathable. The contour pouch offers lift and support. Ultra soft...
SMLXL2XL
JUSTIN+SIMON XSJBU02 Bulge Thongs Color Peach Black

JUSTIN+SIMON XSJBU02 Bulge Thongs Color Peach Black

$ 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 XSJBU02 Bulge Thongs Color Peach Blue

JUSTIN+SIMON XSJBU02 Bulge Thongs Color Peach Blue

$ 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 XSJ03 Classic Thongs Color Peach Blue

JUSTIN+SIMON XSJ03 Classic Thongs Color Peach Blue

$ 23.99$ 19.95
XSJ03 Silky Sexy Thongs give you minimal coverage with a sporty, sexy look. It's made from a super lightweight microfiber that is ultra-breathable. The contour pouch offers lift and support. Ultra soft...
SMLXL2XL
JUSTIN+SIMON XSJ03 Classic Thongs Color Peach Navy

JUSTIN+SIMON XSJ03 Classic Thongs Color Peach Navy

$ 23.99$ 19.95
XSJ03 Silky Sexy Thongs give you minimal coverage with a sporty, sexy look. It's made from a super lightweight microfiber that is ultra-breathable. The contour pouch offers lift and support. Ultra soft...
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.