Hot Chillys Base Layers Fabric Chart

Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. La Montana is Warmth Level 10

La Montana Fleece features:

  • Micro-denier polyester fibers for lighter weight, luxurious drape, breathability, warmth without added bulk, strength and durability
  • MTF polyester moisture transfer fibers for increased moisture management
  • Micro-Elite Chamois panels with Bio-Silver® for freshness
  • Micro-Elite Chamois panels provide an active fit design with freedom of movement
  • UPF 40 +
  • In Adult and Youth Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. ME XT is warmth Level 10

    Micro-Elite XT features:

    • Durable outer with soft, brushed fleece backing
    • 4-way stretch fabric for a next to skin body fit
    • MTF nylon moisture transfer fiber for increased moisture management
    • Highly breathable knit
    • Smooth face for easy layering
    • Wind resistant
    • UPF 40 +
    • In Adult Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. Micro Elite Chamois is Warmth Level 8

    Micro-Elite Chamois features:

    • Intimate blend of enhanced polyester and spandex fibers
    • Moisture Transfer Fibers to move moisture away from the skin
    • 4-way stretch for unlimited movement
    • UPF 30 +
    • Midweight warmth, body fit
    • In Adult and Youth Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. Micro Elite Chamois is Warmth Level 8

    Velvet Fleece features:

    • Velvety soft fleece blend of MTF polyester and spandex 
    • 4-way stretch for unlimited movement
    • UPF 30+
    • Midweight warmth, relaxed fit
    • In Youth Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. Clima-Tek is Warmth Level 7

    Clima-Tek features:

    • Ultimate high-flexibility and casual comfort
    • Moisture Transfer Fibers to move moisture away from the skin
    • 4-way stretch for unlimited movement
    • Antimicrobial properties for odor control
    • UPF 30 +
    • Midweight warmth, relaxed fit
    • In Adult Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. Clima-Wool is Warmth Level 7

    Clima-Wool features:

    • Soft, comfortable MTF Nylon/spandex blend
    • 4-way stretch for unlimited movement
    • Mulesing free
    • Odor Blocking
    • UPF 30+
    • Midweight warmth, relaxed fit
    • In Adult sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red.  Original products are Warmth Level 7 Thermals

    Originals features:

    • Moisture Transfer Fibers to keep you dry
    • Body fit design for next to skin performance fit
    • Easy, comfortable feeling
    • UPF 30+
    • Active lifestyle styling
    • In Youth Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red.  Bi-Ply is Warmth Level 7 Lower

    Pepper Bi-Ply features:

    • MTF Moisture Transfer Fibers for moisture management
    • Spun polyester is slightly brushed for extra softness
    • Double layer traps air between layers for extra warmth
    • Flat seam construction for seam strength and longevity
    • Versatile for sports or everyday warmth needs
    • Midweight warmth, relaxed fit 
    • In Adult and Youth Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red.  Peachskins are Warmth Level 6

    Peach Skins features:

    • 100% Microfiber Polyester makes it light for layering
    • Moisture Transfer Fibers to move moisture away from the skin
    • Antimicrobial treatment to inhibit bacteria growth
    • Anatomically designed shape with room to move
    • Soft, silky hand feel makes it easy to layer over
    • UPF 30 +
    • Lightweight warmth, relaxed fit
    • In Adult and Youth Sizing
    Hot Chillys rates their thermals warmth in numbers 5 for cool conditions through 10 for very cold conditions. Five is green, yellow is six, light orange is seven, dark orange is eight, nine and ten are red. Pepperskins are Warmth Level 6 Thermals

    Pepper Skins features:

    • MTF Moisture Transfer Fibers for moisture management
    • Spun polyester is slightly brushed for extra softness
    • Flat seam construction for seam strength and longevity
    • Versatile for sports or everyday warmth needs
    • Midweight warmth, relaxed fit
    • In Adult and Youth Sizing