Shirtless man standing in front of a white background wearing a pair of Jack Adams Natural Fit Modal Briefs in teal (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Natural Fit Modal Briefs in teal (back view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Natural Fit Modal Briefs in driftwood (profile view)

Natural Fit Modal Brief

Regular price$33.00
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Engineered for the male body, the Modal Natural Fit Brief delivers a contoured, supportive pouch and a precision-tailored silhouette that feels clean, sculpted, and effortlessly secure.

Style & Fit

Underwear- Brief

Fit — A Better, Smarter Contour

Designed with our Natural Fit pouch, this brief shapes, supports, and lifts with a refined ergonomic contour that follows your anatomy—not the other way around. The result is a smooth, engineered fit that eliminates compression, prevents shifting, and sits cleanly under everything from tailored trousers to everyday clothes. This style is perfect for men with larger glutes and legs.

Fabric — Butter‑Soft TENCEL™ Modal

Crafted from premium TENCEL™ Modal, the fabric is buttery soft, breathable, lightweight, and naturally cool to the touch. It melts against the skin with a second‑skin feel that stays comfortable all day. Hypoallergenic, moisture‑wicking, and ultra‑smooth, it's the kind of fabric you forget you're wearing.

Function — Everyday Performance, Elevated

The Natural Fit Brief is built for movement and comfort. The contour pouch provides reliable support, the waistband stays flat and flexible, and the Modal fabric keeps you dry and cool through long days, workouts, and weekends. Durable, quick‑drying, and designed to maintain its shape, it's a pair that works as hard as you do.

Simple, modern, and exceptionally soft—this is the brief that earns a permanent place in your rotation.
SIZE - True to size
  • Fabric: 95% Modal, 5% Elastane.
  • Care: Machine wash on cold water. Air Dry and do not use bleach.



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Discreet packaging: plain poly bag or brown box.

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Jack Adams™ underwear and shorts/pants sizing is measured at the waist. To find your correct waist size, measure your torso about one inch below the belly button. To find your size in all of our tops and hoodies, measure your chest around, at approximately one inch below your arm pit. 

Size Chart - INCHES

SIZES (inches) S M L XL XXL 
CHEST 35-37 38-40 41-43 44-47 N/A
NECK 14-14.5 15-15.5 16-16.5 17-17.5 N/A
WAIST 27-29 30-32 33-35 36-38 38-43

 Size Chart - METRIC

SIZES (cm) S M L XL XXL 
CHEST 89-94 97-101 104-109 112-118 N/A
NECK 36-37 38-39 41-42 43-44 N/A
WAIST 69-73 76-81 84-89 91-97 97-109

 

 

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