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Size Guide

Universal Size Guide

Use our master size charts below to find your perfect fit across our clothing and footwear collections. All measurements are provided as standard industry guidelines.

1. Men's Formal Shirts (Collar Sizing)

Formal dress shirts are measured primarily by the neck circumference.

  • S (Small): Collar 14.5" - 15" (37cm - 38cm) | To Fit Chest 36" - 38"
  • M (Medium): Collar 15.5" - 16" (39cm - 41cm) | To Fit Chest 39" - 41"
  • L (Large): Collar 16.5" - 17" (42cm - 43cm) | To Fit Chest 42" - 44"
  • XL (X-Large): Collar 17.5" - 18" (44cm - 46cm) | To Fit Chest 45" - 47"
  • 2XL (XX-Large): Collar 18.5" - 19" (47cm - 48cm) | To Fit Chest 48" - 50"
  • 3XL (3X-Large): Collar 19.5" - 20" (50cm - 51cm) | To Fit Chest 51" - 53"
  • 4XL (4X-Large): Collar 20.5" - 21" (52cm - 53.5cm) | To Fit Chest 54" - 56"

1b. Men's Suit Jackets, Blazers & Waistcoats

Tailored jackets and waistcoats are sized primarily by chest circumference in inches.

  • 36" Jacket (Small / EU 46): To Fit Chest 36" (91.5cm)
  • 38" Jacket (Small - Medium / EU 48): To Fit Chest 38" (96.5cm)
  • 40" Jacket (Medium / EU 50): To Fit Chest 40" (101.5cm)
  • 42" Jacket (Large / EU 52): To Fit Chest 42" (106.5cm)
  • 44" Jacket (Large - X-Large / EU 54): To Fit Chest 44" (111.5cm)
  • 46" Jacket (X-Large / EU 56): To Fit Chest 46" (117cm)
  • 48" Jacket (XX-Large / EU 58): To Fit Chest 48" (122cm)
  • 50" Jacket (3X-Large / EU 60): To Fit Chest 50" (127cm)
  • 52" Jacket (4X-Large / EU 62): To Fit Chest 52" (132cm)

Jacket Fitting Lengths

Most premium tailoring brands offer different jacket lengths based on your height:

  • Short (S): Ideal for heights up to 5'7" (170cm)
  • Regular (R): Ideal for heights from 5'8" to 6'0" (173cm - 183cm)
  • Long (L): Ideal for heights 6'1" and over (185cm+)

2. Men's Pullovers, Knitwear & Casual Shirts

For jumpers, casual shirts, t-shirts, and coats measured by chest size.

  • S (Small): To Fit Chest 36" - 38" (91.5cm - 96.5cm)
  • M (Medium): To Fit Chest 39" - 41" (99cm - 104cm)
  • L (Large): To Fit Chest 42" - 44" (106.5cm - 112cm)
  • XL (X-Large): To Fit Chest 45" - 47" (114.5cm - 119.5cm)
  • 2XL (XX-Large): To Fit Chest 48" - 50" (122cm - 127cm)
  • 3XL (3X-Large): To Fit Chest 51" - 53" (129.5cm - 134.5cm)
  • 4XL (4X-Large): To Fit Chest 54" - 56" (137cm - 142cm)

3. Men's Trousers, Chinos & Jeans

Trouser sizing is determined by your waist circumference and your inside leg length.

Waist Sizing

  • 30" Waist: 76cm (Alpha Size: Small)
  • 32" Waist: 81.5cm (Alpha Size: Medium)
  • 34" Waist: 86.5cm (Alpha Size: Medium - Large)
  • 36" Waist: 91.5cm (Alpha Size: Large)
  • 38" Waist: 96.5cm (Alpha Size: X-Large)
  • 40" Waist: 101.5cm (Alpha Size: XX-Large)
  • 42" Waist: 106.5cm (Alpha Size: 3X-Large)
  • 44" Waist: 111.5cm (Alpha Size: 4X-Large)

Inside Leg Length

  • Short (S): 30" Inside Leg (76cm)
  • Regular (R): 32" Inside Leg (81.5cm)
  • Long (L): 34" Inside Leg (86.5cm)

4. Women's Blouses & Tops

Standard conversions for women's tops and tailored items.

  • UK 8 (XS): To Fit Bust 32" (81cm)
  • UK 10 (S): To Fit Bust 34" (86cm)
  • UK 12 (M): To Fit Bust 36" (91cm)
  • UK 14 (L): To Fit Bust 38" (97cm)
  • UK 16 (XL): To Fit Bust 40" (102cm)
  • UK 18 (2XL): To Fit Bust 42" (107cm)
  • UK 20 (3XL): To Fit Bust 44" (112cm)

5. Women's Skirts & Trousers

Sizing guidelines for waist and hip fits.

  • UK 8: Waist 25" (63.5cm) | Hips 35" (89cm)
  • UK 10: Waist 27" (68.5cm) | Hips 37" (94cm)
  • UK 12: Waist 29" (73.5cm) | Hips 39" (99cm)
  • UK 14: Waist 31" (78.5cm) | Hips 41" (104cm)
  • UK 16: Waist 33" (84cm) | Hips 43" (109cm)
  • UK 18: Waist 36" (91.5cm) | Hips 46" (117cm)
  • UK 20: Waist 39" (99cm) | Hips 49" (124.5cm)

6. Footwear Size Guide

Shoe sizes can vary slightly by brand, but these charts show standard conversions.

Men's Shoes

  • UK 6: EU 39-40 | US 7 | Foot Length approx. 24.5cm
  • UK 7: EU 41 | US 8 | Foot Length approx. 25.4cm
  • UK 8: EU 42 | US 9 | Foot Length approx. 26.3cm
  • UK 9: EU 43 | US 10 | Foot Length approx. 27.2cm
  • UK 10: EU 44-44.5 | US 11 | Foot Length approx. 28.0cm
  • UK 11: EU 45-46 | US 12 | Foot Length approx. 28.8cm
  • UK 12: EU 47 | US 13 | Foot Length approx. 29.6cm

Jack & Jones JACDENVER Trunks 3-Pack

£25.00

Jack & Jones JACDENVER Trunks 3-Pack

Upgrade your daily base layers with the premium Jack & Jones JACDENVER Trunks 3-Pack. As shown in the provided technical images, these high-quality men's trunks offer a close-fitting alternative to traditional boxer briefs, featuring a shorter cut that covers less leg for optimal freedom of movement.

They serve as a highly dependable foundation piece for your everyday clothing collection, moving easily across changing seasonal events. The close-fitting layout beautifully balances a crisp presentation with outstanding physical flexibility, ensuring you feel entirely at ease whether you are heading into a busy day at the office, pushing through a high-intensity workout at the gym, or relaxing at home on the weekend.

Soft Organic Jersey and Flexible Elasticated Waistband

The cornerstone of these Jack & Jones trunks is their premium-quality circular knit construction, expertly woven from a soft, stretch-infused fabric blend. As detailed in image_382e5e.png, the material composition consists of 95% organic cotton and 5% elastane, delivering a minimum of 50% certified organic cotton throughout the garment. This premium single jersey weave is lightweight, breathable, and naturally stretchy, offering an exceptionally smooth finish and a luxurious feel next to your skin.

Engineered with a reliable 28-gauge fabric weight, these trunks provide a supportive, non-restrictive fit that maintains its structural shape beautifully through frequent laundering. Traditional design architecture ensures a fully secure and customized presentation, utilizing a robust elasticated waistband designed to sit comfortably at a regular mid-rise position. For a distinct designer touch, each pair features a contrast horizontal stripe on the band alongside iconic Jack & Jones text branding knit into the elastic.

Key Product Specifications

Our premium men's organic cotton underwear pack is engineered with precise structural, functional, and lifestyle attributes to ensure an immaculate finish:

  • Official Style Code: Patterned as the JACDENVER TRUNKS 3 PACK SN for effortless style verification, guaranteed quality, and quick online matching.

  • Premium Single Jersey: Crafted from a high-grade circular knit fabric blend of 95% organic cotton and 5% elastane for enhanced flexible comfort.

  • Certified Organic Fibres: Made using at least 50% certified organic cotton to support sustainable, eco-conscious textile farming methods.

  • Elasticated Waistband: Structured with a highly resilient elastic band that provides a secure, non-slip fit around the waist without restriction.

  • Shorter Trunk Fit: Cut with a contemporary close-fitting shape that offers excellent daily support and a sleek modern silhouette under clothing.

  • Convenient Multi-Pack: Bundled in a practical three-pack to help you effortlessly restock your essential daily underwear drawer.

  • Vibrant Colour Variety: Outfitted with an eye-catching mix of bold red, classic light grey marl, and deep navy blue to diversify your wardrobe.

Sophisticated Daily Layering and Care Advice

The smooth, stretch-cotton silhouette of these designer trunks makes them exceptionally simple to layer beneath any style of legwear. For an immaculate, wrinkle-free presentation under your sharpest office attire, wear these close-fitting trunks beneath our tailored suits or slim-fit business trousers.

When your weekend schedule calls for a relaxed approach, they layer perfectly beneath casual denim jeans, stretch chinos, or traditional lounge sweatpants without creating uncomfortable bunching. To maintain the stretch performance and rich colours, machine wash on a gentle cycle and dry flat away from direct heat.