Beat The Heat: Why 100% Cotton Is The Summer Choice

As the UK summer temperatures begin to climb towards the 30°C mark, the "great workwear debate" resurfaces: Synthetic performance fabrics or classic natural fibres?

Whilst polyester blends have their place in high-visibility gear, many tradespeople are returning to basics for their everyday base layers. At QLT Supplies, we’ve seen a massive shift towards the Kapriol ENJOY 100% Cotton T-Shirt collection.

Why Cotton?

Here is why 100% cotton remains the undisputed heavyweight champion of summer breathability.

1. The Science of "Natural Cooling"

Unlike synthetic fibres, which are essentially plastic-based and can trap heat against the skin, cotton is a cellulosic fibre. This means it’s naturally porous.

• Airflow: Cotton allows air to circulate freely through the fabric, cooling the skin and speeding up the evaporation of sweat.
• Absorbency: Cotton can absorb up to 25% of its weight in water before it even begins to feel damp. On a humid July afternoon, that’s the difference between feeling "fresh" and feeling "swamped."

2. Comfort Under Pressure

When you’re active—climbing scaffolding, hauling materials, or operating machinery—friction is your enemy.

Did you know? Synthetic fabrics can often cause skin irritation or "prickly heat" when combined with sweat and physical movement.

The Kapriol ENJOY T-Shirts feature a soft-touch finish that is hypoallergenic. For those with sensitive skin who find themselves working 10-hour shifts in the sun, the soft, non-irritating nature of 100% cotton is a gamechanger.

3. Durability Meets Style: The ENJOY Collection

A common myth is that cotton isn't "tough" enough for a construction site. Kapriol disproves this by using a high-density knit that maintains its shape wash after wash.

• The Men’s Range: Features rugged "Urban" prints and a reinforced neckline that won't sag after a week of hard graft.
• The Women’s Range: Offers a tailored fit without sacrificing the heavy-duty cotton quality. It’s a dedicated cut designed for the female frame, ensuring you don't have to "make do" with an oversized men's small.
• The Colour Palette: From the earthy Dark Gold to the professional Petrol Blue, these shirts are designed to hide the dust of the site while looking sharp enough for a client meeting.

4. Odour Management

We’ve all been there—polyester work shirts can develop a "permanent" smell after a few hot weeks. This is because bacteria thrive on synthetic fibres. Cotton, however, releases odours much more easily in a standard wash, keeping your kit smelling fresher for longer throughout the summer season.

The Cotton Collection

If you’ve been struggling with "sticky" workdays, it’s time to rethink your layers. Switching to a high-quality, 100% cotton tee like the Kapriol ENJOY series isn't just about fashion—it's about thermal regulation and staying focused on the job.

100% Cotton Enjoy Short Sleeve T-Shirts

The Kapriol Enjoy T-Shirt from the Urban collection, is a versatile and stylish garment designed for both work and leisure. Crafted with a Crew Neckline and featuring a Short Sleeve structure for ease of movement, creating a comfortable and modern look, available in various brights colours and design options.

Mustard Yellow | "Everything Is Repairable" Tool Box Print

Featuring a clean, minimalist graphic layout of a classic toolbox, it carries a bold slogan that resonates with every true tradesperson: Everything is Repairable. This print looks exceptional on the Mustard Yellow with the black and light grey print, providing a sharp contrast that makes the tool vectors pop without looking flashy. Giving a smooth blend of stand-out style with minimalist contrast. Made from 100% cotton, providing a soft and breathable feel. The fabric weight is 150gr/m², offering a balance of durability and lightness. Designed to be suitable for a variety of settings, from work environments to casual outings with a stylish look and feel.

Petrol Blue | Construction Site Print

Bringing a building site and construction blueprint layout directly onto the fabric, this bold white print looks absolutely top-tier against the Petrol Blue T-Shirt. The rich, deep blue tone provides the perfect background for the white and yellow graphics at the forefront, making it look incredibly simple yet sharp on-site. Made from 100% cotton, providing a soft and breathable feel. The fabric weight is 150gr/m², offering a balance of durability and lightness. Designed to be suitable for a variety of settings, from work environments to casual outings with a stylish look and feel.

Graphite Grey | Cityscape View Print

For those who bridge the gap between creative design and hard construction, the Cityscape print offers a slightly sleeker, more modern aesthetic. The simple light grey print and typography provides the right level of understated flair against the dark Graphite Grey colour scheme. Made from 100% cotton, providing a soft and breathable feel. The fabric weight is 150gr/m², offering a balance of durability and lightness. Designed to be suitable for a variety of settings, from work environments to casual outings with a stylish look and feel.

Caramel Gold | Tools Line-Up Print

If you prefer your workwear to look unashamedly rough and rugged, the bold Toolbox graphic is the traditionalist's choice. The Caramel colour choice looks incredibly striking as a fabric option, leaning heavily into a classic, premium industrial heritage style. Made from 100% cotton, providing a soft and breathable feel. The fabric weight is 150gr/m², offering a balance of durability and lightness. Designed to be suitable for a variety of settings, from work environments to casual outings with a stylish look and feel.

Cotton Blend Alternative Products

Whilst Cotton provides a natural cooling solution during heatwaves and warmer working conditions, it may not provide the ideal solution for durability and flexibility. For those seeking a Cotton alternative or require other material elements for those features, having a blend of Cotton with material such as Polyester or Elastane, could be the ideal solution.

Teneré PRO Shorts & Teneré PRO Trousers

Wear Proof Shorts and Slim Fit Trousers, both crafted from a robust blend of 97% Cotton and 3% Elastane. This composition provides the natural comfort and breathability of cotton combined with the essential stretch for flexibility and shape retention. With a substantial fabric weight of 270g/m², offering excellent durability and a premium feel. Strong Comfort Design for all-day wear, whilst also constructed to be highly resistant to wear and tear, ensuring longevity and reliability in demanding work environments. The Trousers also feature Knee & Pocket Panel Reinforcements made from 100% Oxford Polyester with PU Coating (fabric weight of 190g) for additional strength in work applications.

Kavir Kit

The Kapriol Kavir Kit is a practical and comfortable workwear set, perfect for everyday use. It includes a light grey, short-sleeved T-shirt made from 85% cotton with additional 15% viscose (140g/m²), offering excellent breathability and comfort. The kit also features a pair of full-length cargo trousers in a stylish dark/graphite grey, accented with black knee patches for added durability and a modern touch. These trousers are crafted from a hard-wearing blend of 65% polyester and 35% cotton (240g/m²), ensuring they're both comfortable and tough enough for demanding tasks. With side cargo pockets, the trousers provide convenient storage for your essentials, making this kit a versatile choice for a range of work environments.

Dynamic 37.5® Shorts & Dynamic 37.5® Trousers

Lightweight Cargo Shorts and Slim Fit Trousers, both meticulously engineered to deliver exceptional comfort, mobility, and advanced thermo regulation for professionals operating in warm and active environments. These stretchable shorts combine cutting-edge textile technology with practical utility to enhance performance throughout your workday. Comprised of 62% Cotton: Provides natural comfort and breathability, 35% Nylon 37.5® Cocona: Integrates the revolutionary 37.5® Technology for active thermoregulation and 3% Elastane: Ensures significant stretch and flexibility for unrestricted movement. Comprised of 62% Cotton: Provides natural comfort and breathability, 35% Nylon 37.5® Cocona: Integrates the revolutionary 37.5® Technology for active thermoregulation and 3% Elastane: Ensures significant stretch and flexibility for unrestricted movement.

View More Details On The Dynamic 37.5® Technology Here!

Smart Shorts

Engineered for the discerning professional who requires workwear that combines robust durability with a smart, comfortable design. These shorts are a practical and stylish solution for warmer working conditions, built to withstand daily wear while maintaining a professional appearance. Made from a hard-wearing blend of 60% cotton and 40% polyester. This composition balances the natural comfort and breathability of cotton with the enhanced durability, wrinkle resistance, and quick-drying properties of polyester. With a substantial fabric weight of 280g/m², these shorts offer excellent robustness and a premium feel, making them highly suitable for rigorous use.

Slick Shorts & Slick Trousers

Cargo Shorts and Regular Fit Trousers with Knee Pad Pockets, both these garments are made from 65% polyester and 35% cotton twill. At 260gr/m² they are tailored for high-durability applications, but offer light and flexible freedom for the summer months. Designed and built to meet the demands of professionals who require both durability and functionality, whilst offering flexibility and effective cooling relief in the hot summer time weather. The Trousers are available in a selection of styles, colours and designs, to add some exotic styling themes to your workday.

Women's Cargo Trousers

Crafted to withstand the rigours of everyday wear while providing exceptional comfort and flexibility, with a durable blend of 75% Polyester and 25% Cotton (with a fabric weight of 250g/m²), these trousers are built to last. The Regular Fit ensures a comfortable and flattering silhouette, while the preformed knees and rule pocket offer added functionality. 

Dynamic Craftsman Trousers

Developed to meet the demands of professionals who require both durability and functionality, from a robust blend of 42% Cotton and 58% Polyester (with a fabric weight of 260gr/m²), these Regular Fit trousers offer exceptional wear resistance and a comfortable, flexible fitting. The high-durability construction ensures they can withstand the rigors of everyday work, while the thoughtful design features provide practical solutions for on-the-job needs.

Nimes Trousers

Slim Fit Trousers for comfort, durability, and style, using a premium blend of 73% Cotton, 25% Polyester, and 2% Elastane, these trousers offer exceptional softness and a dynamic stretch that moves with you. The heavy use of Cotton, maintains the natural cooling elements for warmer days, whilst the addition of Polyester and Elastane adds flexibility and comfort. With a fabric weight of 310gr/m² offer exceptional softness and comfort with a dynamic stretch ability, perfect for work, play, or any activity that demands both performance and style.

Kavir Redwood Shirt

A timeless piece that combines classic style with modern comfort with 100% cotton yarn-dyed and size-brushed fabric, this long-sleeve button-up shirt offers exceptional softness and a luxurious feel against the skin. The 150gr/m² fabric weight enables softness and comfort whilst working, whilst the design provides a smart and sophisticated look with practical pocket features.

Hi-Vis Trousers

Heavy-Duty Regular Fit Work Trousers with high-visibility safety at the forefront of the design. Made from a robust, Wear Proof 80% Polyester and 20% Cotton Canvas blend with a substantial fabric weight of 270 gr/m², these trousers are built for high durability work environments for low light and poor visibility conditions or where high-vis safety standards are required. The 7 cm (H. CM 7) reflective stripes, ensures they comply with safety standard: EN 20471 – Level 2.

K-Belt Accessory

A material blend of 70% Polyester and 30% Cotton for long-lasting wear, this dependable belt offers the perfect balance of strength and flexibility, ensuring it can withstand daily wear while providing a comfortable fit. The robust construction and classic design make it a perfect addition to any wardrobe, whether for work or casual wear.

Cotton vs Polyester – Which is best for the Summer Season?

Cotton is generally much better for everyday summer wear because it is a natural, highly breathable fibre that allows air to circulate and pulls heat away from your body. However, polyester is superior for intense outdoor workouts because it actively wicks sweat away and dries rapidly, whereas cotton acts like a sponge and stays wet. Cotton is considered the more favourable choice due to Polyesters lack of breathability and comfort. Polyester clothing items tend to come with a “greenhouse” style of trapping body heat and sweat against the wearer, alongside a “static cling” effect.

Cotton Key Points:

• Natural Cooling/Airflow: Its porous fibre structure lets your skin breathe, keeping you cool in dry heat.
  
  
• Skin Comfort: It is naturally soft, hypoallergenic, and won’t irritate your skin when you start to perspire.
  
  
• Odour Control: Unlike synthetics, cotton doesn't hold onto body odours after a single wash
  
  

Polyester Key Points:

• Moisture-Wicking: It is hydrophobic (repels water), meaning it pushes sweat away from your body rather than absorbing it.
  
  
• No Sweat Patches: Because it dries so fast, you won't be stuck sitting in a heavy, drenched shirt.
  
  
• Durability: It resists wrinkles, shrinking, and stretching, making it incredibly easy to wash and wear

Polyester Products

Dynamic 37.5® T-Shirt

A cutting-edge performance garment from the Dynamic collection, engineered to provide unparalleled comfort and thermo regulation for demanding work environments and active leisure. This short-sleeve t-shirt harnesses advanced textile technology to keep you at your optimal comfort zone, regardless of the conditions. Comprised of 70% 37.5® Polyester Cocona: The core of its performance, incorporating the patented 37.5® Technology, blended with 30% Double Face Polyester: Provides additional comfort and durability, contributing to the shirt's overall structure. With a lightweight fabric weight of 120g/m², it offers excellent breathability without feeling heavy. By working with your body's own energy, the technology helps to efficiently cool you down when you're hot and retain warmth when you're cold, striving to maintain your body's ideal core temperature of 37.5°C. When you start to warm up and perspire, the active particles attract and accelerate the evaporation of moisture in the vapor stage before it turns into liquid sweat. This prevents clamminess and keeps your skin's microclimate at an ideal relative humidity.

View All Workwear & Active Leisurewear Clothing Options & Accessories, Available From QLT Supplies

The Verdict: Make Cotton Your Summer Baseline

When you are facing a long, hot summer on the job, your gear needs to work just as hard as you do. While synthetic fabrics have their place, 100% pure cotton remains the undisputed champion for pure, breathable comfort when the heat is on.

By choosing a premium cotton option like the Kapriol ENJOY T-Shirt, you aren’t just getting a lightweight layer that keeps you cool; you are investing in a durable, irritation-free, and naturally odour-resistant shirt built specifically for the demands of the trade. Don't sweat through another summer in heavy, sticky synthetics—give your skin some breathing room.