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Under Armour Base Layers Comparison - May 2026

5 Best Under Armour Base Layers In the UK

1
Best Choice
9.9Exceptional
2
9.8Exceptional
3
9.5Excellent
4
9.4Excellent
5
Best Value
9.1Excellent
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Model

Under Armour Men's UA CG Armour Comp Mock, Men's Base Layer with a Polo Neck, Thermal Long Sleeve Top for Winter Running and Skiing with Anti-Odour Technology
Model
Under Armour Men UA HG Armour Leggings, Comfortable and robust gym leggings, lightweight and elastic thermal underwear with compression fit
Model
Under Armour UA HG Armour Comp Mock LS - Long Sleeve - Tops - Black/White - Size: XL
Model
Under Armour Mens UA HG Armour Comp SS, short-sleeved sports t-shirt for men, comfortable and lightweight gym clothes for workouts
Model
Under Armour UA HG Armour Comp Mock LS - Long Sleeve - Tops - White/Black - Size: LG

Brand

Under Armour
Brand
Under Armour
Brand
Under Armour
Brand
Under Armour
Brand
Under Armour

Reviews

7,580 reviews
Reviews
11,972 reviews
Reviews
3,912 reviews
Reviews
2,096 reviews
Reviews
3,912 reviews

Tech Specs

item weight

1 kg
item weight
-
item weight
1 kg
item weight
-
item weight
1 kg

Available On

Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.9
    1
    Under Armour
    38% Off

    Under Armour Men's UA CG Armour Comp Mock, Men's Base Layer with a Polo Neck, Thermal Long Sleeve Top for Winter Running and Skiing with Anti-Odour Technology

    Main highlights
    • Ultra-warm – The men's thermal top features a dual-layer fabric with an ultra-warm, brushed interior and a mock neck for added coverage and warmth.
    • Sweat-wicking – Even in fast-action, stay cool with the ski base layer's sweat-wicking, fast-drying material, which features anti-odour technology.
    • Strategic ventilation – With a stretch-mesh back and underarm panels, the compression top gives breathability just in the places you need it.
    • Smooth and stretchy – The thermal base layer for men's 4-way stretch material gives you full freedom of movement throughout the training session.
    • Material and fit – Under Armour Men's UA CG Armour Comp Mock, turtle neck top for men, winter running top, material: 87% polyester/13% elastane.
  • 9.8
    2
    Under Armour
    24% Off

    Under Armour Men UA HG Armour Leggings, Comfortable and robust gym leggings, lightweight and elastic thermal underwear with compression fit

    Why we love it

    Lightweight, robust fabric ensures comfort.
    Quick-drying material keeps you dry.
    Ergonomic design enhances durability.
    Main highlights
    • UNDER ARMOUR HEATGEAR LEGGINGS: Lightweight, fitted baselayer engineered for seamless comfort and unrestricted mobility during training and sports. The ergonomic construction keeps seams away from high-abrasion zones, enhancing both durability and performance.
    • STRETCH & SECURE FIT: Built with 4-way stretch fabric that moves effortlessly with your body, these leggings deliver flexibility without compromise. The elastic waistband provides a snug, stay-put fit, while the drop-in Strength Pocket on the right side keeps essentials close and secure.
    • EMPOWERING PERFORMANCE: Created with innovation and purpose, Under Armour brings performance solutions you never knew you needed and can't imagine living without.
    • COOL & BREATHABLE: Strategically placed mesh panels enhance airflow in high-heat zones, maintaining comfort during high-intensity movement. Odor control technology helps minimize odor for lasting freshness.
    • ADVANCED HEATGEAR FABRIC: Delivers superior coverage without weighing you down. Updated gusset design provides ultimate comfort and range of motion. Ultra-soft, quick-drying material feels smooth against the skin, wicks sweat efficiently, and keeps you comfortable throughout activity.
  • 9.5
    3
    Under Armour
    28% Off

    Under Armour UA HG Armour Comp Mock LS - Long Sleeve - Tops - Black/White - Size: XL

    Why we love it

    Durable and lightweight with effective compression benefits.
    Strategic ventilation keeps you cool during activities.
    Anti-odor technology ensures freshness all day.
    Main highlights
    • UNDER ARMOUR HEATGEAR COMPRESSION LONG SLEEVE T-SHIRT: Original performance baselayer with a tight, second-skin fit, providing support, comfort, and moisture-wicking performance for training and sports.
    • SUPER-LIGHT HEATGEAR FABRIC: Ultra-soft, lightweight material that wicks sweat quickly and dries fast, keeping you cool and comfortable throughout activity.
    • EMPOWERING PERFORMANCE: Created with innovation and purpose, Under Armour brings performance solutions you never knew you needed and can't imagine living without.
    • EASY CARE & DURABLE: Machine wash cold with like colours; tumble dry low; use only non-chlorine bleach when needed. Do not iron, use softeners, or dry clean. Built to maintain fit, softness, and performance through repeated washes.
    • COOL & BREATHABLE: Hybrid raglan sleeve construction moves easily with your body for unrestricted movement, while mesh panels in key areas improve airflow to keep you comfortable and cool.

Our ranking system

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Features

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Consumer Reviews

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Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
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Value for money

topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.