
Jack & Jones
3.5" Ultra-Comfortable Trunk
Jack & Jones 3.5" trunk underwear made from stretch cotton jersey, worn as everyday men's undergarment beneath clothing. Features a dark navy elastic waistband printed with repeated white JACK & JONES text, a double-layered front panel, straight leg openings with a narrow hem, and a vertical center rear seam. The knit fabric has an all-over tropical leaf print in dark green and royal blue on a light gray-beige base; inseam measures 9 cm (3.5").
- Material
- Stretch cotton jersey
- Gender
- male
- Style
- casual, minimal, classic
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Specifications
Ultra-comfortable stretch cotton trunk with an elastic waistband, double-layered front, and short 3.5-inch inseam.
Stretch cotton jersey, elastic waistband, double-layered front panel, 3.5-inch (9 cm) inseam.
- Material
- Stretch cotton jersey
- Secondary
- elastane
- Style
- casual, minimal, classic
- Occasion
- everyday, loungewear
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- stretch cotton jersey fabric
- elastic waistband
- double-layered front panel
- 3.5-inch (9 cm) inseam
- trunk silhouette
- short-leg cut
- pull-on style
- ultra-comfortable design
- close-fitting underwear style
- Jack & Jones at Le 31
Product Insights
3.5" Ultra-Comfortable Trunk 95% organic cotton, 5% spandex Short 3.5-inch (9 cm) inseam Soft, breathable cotton feels suitable for all-day skin contact Short trunks can ride up during intense movement Flat 15 CAD across every colour and size
Verified claims
- category
- Men's underwear trunk
- material
- 95% organic cotton, 5% spandex
- fabric_behavior
- Stretch cotton jersey resists sagging and bagging
- construction
- Elastic waistband with repeated Jack & Jones branding
- construction
- Double-layered front panel, flyless knit design
- fit
- Short 3.5-inch (9 cm) inseam
- fit_guidance
- Measure waist and hips, then compare with the size chart
- fit_guidance
- Waistband should sit around the hip bones
- comfort
- Soft, breathable cotton feels suitable for all-day skin contact
- ride_up
- Short trunks can ride up during intense movement
- use_cases
- Everyday wear and under fitted trousers
- styling
- Patterned tropical leaf print in green or blue
- care
- Machine wash, do not bleach, tumble dry, iron, do not professionally clean
- care_guidance
- Wash cool, turn inside out, and air dry to protect elasticity
- durability
- Replace when fabric wears, elasticity fades, or shape distorts
- construction_quality
- Check waistband and seam finish for longevity
- opacity_support
- Double layer can add support and opacity at the front
- comparison
- Trunk cut versus brief and boxer brief
Product record
- Title
- 3.5" Ultra-Comfortable Trunk
- Brand
- Jack & Jones
- Price
- 15 CAD
- Availability
- In stock
Buying Guide
1 comparison · 8 sourcesProduct comparison
Compared within this brand.
| 3.5" Ultra-Comfortable Trunk: Choose this if you want a shorter trunk with a 3.5-inch (9 cm) inseam made of very comfortable stretch cotton jersey—95% organic cotton with 5% spandex—and an elastic waistband printed with repeated Jack & Jones text. It is double layered at the front and, as shown on the model, sits at the natural waist and fits close to the body without sagging. It comes in sizes SMALL through X-LARGE and three colors: Patterned Green, Navy/Midnight Blue, and Patterned Blue.[1,2] | 3" Comfort Trunk Cotton: Choose this if you want a short, close-fitting trunk in comfortable stretch cotton jersey (95% cotton, 5% spandex), with a 3-inch inseam, mid-rise waist, contoured front pouch, and a double-layered front. It suits shoppers drawn to an exposed elastic branded waistband and an all-over skull-and-floral print over a medium blue background. Note that the listing shows only SMALL variants in blue colorways (Navy/Midnight Blue and Patterned Blue), so other sizes or colors may not be available there.[3,4,5] | 3" Solid Comfort Trunk Cotton: Choose this if you want a short 3-inch inseam trunk in a soft stretch cotton jersey (95% cotton, 5% elastane) that the retailer describes as very comfortable, with an elastic waistband, double-layered front, and a subtle embossed JACK & JONES wordmark on a wide, slightly darker waistband. It suits shoppers who prefer a simple solid style with a smooth matte finish and visible stitch detailing at the pouch and hems, and it comes in sizes from small to extra large.[6,7,8] |
Image Analysis
2 images- 01

Product
Front view of a male model wearing patterned trunks with a dark navy elastic waistband printed with repeated white 'JACK & JONES' text; trunks have an all-over tropical leaf print in dark green and blue on a light gray-beige base.
- Waistband material and textElastic waistband in a dark navy color with repeated white uppercase text 'JACK & JONES' centered on the front band.
1 region
x 0.18 · y 0.55 · w 0.64 · h 0.07 (high) - Waistband text transcription“JACK & JONES”
1 region
x 0.28 · y 0.55 · w 0.44 · h 0.07 (high) - Trunk fabric base colorSmooth knit fabric base appears as a light gray-beige background across the trunk body.
1 region
x 0.12 · y 0.62 · w 0.76 · h 0.28 (high) - Tropical leaf print - dark greenLarge tropical leaf shapes printed in a dark green tone, distributed across the front and sides of the trunks.
2 regions
x 0.16 · y 0.66 · w 0.36 · h 0.28 (high); x 0.50 · y 0.66 · w 0.34 · h 0.26 (high) - Tropical leaf print - blueAccent leaf shapes and details printed in a saturated royal blue scattered over the trunk surface.
2 regions
x 0.34 · y 0.66 · w 0.28 · h 0.24 (high); x 0.58 · y 0.70 · w 0.18 · h 0.18 (medium) - Stitching and seamsVisible vertical front seam and leg seams with topstitching in a thread color similar to the base fabric.
2 regions
x 0.32 · y 0.64 · w 0.12 · h 0.26 (high); x 0.56 · y 0.64 · w 0.12 · h 0.26 (high)
Other
Studio shot of a torso-and-hip crop on a standing male model against a plain white background with even lighting and soft shadows. Image is centered on the model; head is cropped above the nose.
- Shot compositionFrontal studio photograph cropped from upper thighs to just above the chin of the model, showing torso and trunks.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundEven plain white background with no visible props or packaging.
- Lighting and shadowsSoft, diffuse studio lighting producing gentle shadows along the model's muscles and under the waistband.
- Model croppingModel's face is partly cropped; chin and lower face visible while eyes and forehead are out of frame.
1 region
x 0.12 · y 0.00 · w 0.76 · h 0.45 (high)
Colors
dark navy· waistbandwhite· label text on waistbandlight gray-beige· trunk base fabricdark green· leaf print - dark greenroyal blue· leaf print - blue- Waistband material and textElastic waistband in a dark navy color with repeated white uppercase text 'JACK & JONES' centered on the front band.
- 02

Product
Rear view of a pair of patterned men's trunks on a model; elastic waistband with repeated brand text and an all-over tropical leaf print on the fabric.
- View and fitRear-facing view of trunks worn by a model, covering the upper thighs and sitting at the natural waist; fabric fits close to the body without visible sagging or excess.
1 region
x 0.12 · y 0.32 · w 0.76 · h 0.50 (high) - WaistbandElastic waistband in a solid dark navy color with repeated white text 'JACK & JONES' printed around it.
1 region
x 0.18 · y 0.57 · w 0.64 · h 0.07 (high) - Waistband text“JACK & JONES”
1 region
x 0.21 · y 0.57 · w 0.44 · h 0.06 (high) - All-over printKnitted fabric with an all-over tropical leaf pattern featuring large stylized palm or monstera leaves repeated across the rear panel.
1 region
x 0.12 · y 0.63 · w 0.76 · h 0.35 (high) - Leaf pattern colorsLeaves printed in dark green and a saturated medium-to-deep blue on a muted light gray-green background.
1 region
x 0.20 · y 0.66 · w 0.62 · h 0.28 (high) - Rear seam detailVertical center rear seam visible on the fabric running from waistband down to the seat area.
1 region
x 0.44 · y 0.60 · w 0.12 · h 0.32 (high) - Leg openingsStraight cut leg openings ending at the upper thigh with a narrow hem visible.
1 region
x 0.20 · y 0.86 · w 0.62 · h 0.10 (high)
Other
Studio-style rear-shot on a plain white background showing the model from mid-back to upper thighs with even lighting and soft shadows.
- Model croppingImage is cropped to show the model from the upper back/shoulder area down to the upper thighs; head and lower legs are outside the frame.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundUniform bright white background without visible textures or props.
- Lighting and shadowEven studio lighting with soft, minimal shadows visible near the sides of the model and under the legs.
- Skin detailsModel's exposed back and arms show natural skin tones, small moles, and freckles visible across the back and shoulders.
1 region
x 0.24 · y 0.08 · w 0.52 · h 0.44 (high)
Colors
navy· waistbandwhite· waistband textsage gray· main fabric backgrounddeep olive green· leaf print - greenroyal blue· leaf print - blue- View and fitRear-facing view of trunks worn by a model, covering the upper thighs and sitting at the natural waist; fabric fits close to the body without visible sagging or excess.
Brand PDP Lookup
- Brand
- Jack & Jones
3-pack Trunks
Variants
12 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4604497 | 3.5" Ultra-Comfortable Trunk - Patterned Green - Small | CA$15.00 | Yes |
| 4604498 | 3.5" Ultra-Comfortable Trunk - Patterned Green - Medium | CA$15.00 | Yes |
| 4604499 | 3.5" Ultra-Comfortable Trunk - Patterned Green - Large | CA$15.00 | Yes |
| 4604500 | 3.5" Ultra-Comfortable Trunk - Patterned Green - X-Large | CA$15.00 | Yes |
| 4656703 | 3.5" Ultra-Comfortable Trunk - Navy/midnight Blue - Small | CA$15.00 | Yes |
| 4656704 | 3.5" Ultra-Comfortable Trunk - Navy/midnight Blue - Medium | CA$15.00 | Yes |
| 4656705 | 3.5" Ultra-Comfortable Trunk - Navy/midnight Blue - Large | CA$15.00 | Yes |
| 4656706 | 3.5" Ultra-Comfortable Trunk - Navy/midnight Blue - X-Large | CA$15.00 | Yes |
| 4656707 | 3.5" Ultra-Comfortable Trunk - Patterned Blue - Small | CA$15.00 | Yes |
| 4656708 | 3.5" Ultra-Comfortable Trunk - Patterned Blue - Medium | CA$15.00 | Yes |
| 4656709 | 3.5" Ultra-Comfortable Trunk - Patterned Blue - Large | CA$15.00 | Yes |
| 4656710 | 3.5" Ultra-Comfortable Trunk - Patterned Blue - X-Large | CA$15.00 | Yes |