Signature Thermal Tights

Ideal trousers for mild winters with a brushed interior for increased thermal insulation and thermoregulation.

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Elastic combed material treated with a DWR finish increasing the fabric's ability to repel water and dirt without the use of harmful PFC compounds. The pre-shaped Elastic Interface® insert for better ergonomics is made from recycled materials and a top bio foam made from vegetable oils, making it a more eco-friendly and environmentally friendly option. The trousers are stitched with flat seams for increased comfort, complete with a side pocket and an insulated panel in the lower back area. Visibility in damp weather is enhanced by 3M™ reflective details.

245,00 USD
Beluga
Size Guide
  • Free standard EU shipping on any order over 150 EUR
  • Express EU delivery 1-2 business days
4 way stretch 4 way stretch
Moisture wicking Moisture wicking
Breathable Breathable
Thermal regulation Thermal regulation
Quick drying Quick drying
Flat seams Flat seams
Silicone at the bottom Silicone at the bottom
Reflective graphics Reflective graphics
Water repellent (DWR) Water repellent (DWR)

Temperature 8°C to 16°C

-8°C 0°C 8°C 16°C 24°C 32°C

Weight 3/6

Insulation 3/6

Breathability 6/6

Water protection 1/6

Wind protection 2/6

Abrasion resistance 4/6

Compression 4/6

Features

  • Flat seams
  • Mesh side pocket

Materials

Material 1

  • 55% Recycled Polyamide
  • 31% Polyamide
  • 14% Elastane

Material 2

  • 56% Polyamide
  • 25% Polyester
  • 19% Elastane
Elastic Interface Elastic Interface

Complete the look

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Alternative Insulated Jacket Acorn
Polartec® Alpha® Pertex® Quantum Air
Alternative Insulated Jacket 4 colors
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Merino Winter Cap Dark Blue
Merino Winter Cap Dark Blue
Merino wool
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Autumn-Spring Gloves 3 colors
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1 2 3 4

Elastic Interface Paris HP MEN

Developed to work for your long adventures
1

ECO X-MIX FABRIC

57% Recycled PA; 27% Recycled PL; 16% EA
2

D65 BIO SUPER AIR FOAM

65 kg/m³, 65% bio-based perforated polyurethane foam
3

D120 FOAM

120 kg/m³ polyurethane foam
4

D80 FOAM

80 kg/m³ perforated polyurethane foam
Signature Thermal Tights Beluga
Signature Thermal Tights Beluga 245,00 USD

Size Guide
Fit Guide

MEASUREMENT XXS XS S M L XL XXL 3XL
A – Chest < 85 85-91 91-97 97-103 103-109 109-115 115-121 121-127
B – Waist < 73 73-79 79-85 85-91 91-97 97-103 103-109 109-115
C – Hip < 88 88-94 94-100 100-106 106-112 112-118 118-124 124-130
D – Arm length < 72 72-74 74-76 76-78 78-80 80-82 82-84 82-84
E – Inseam length < 76 76-78 78-80 80-82 82-84 84-86 86-88 86-88
Measurement points:
Chest – circumference measured in widest place
Waist – circumference measured in narrowest place
Hip – circumference measured in widest place
Arm length – measured from neck line to wrist
Inseam length – measured from crotch to ankle

Please note that given measurements apply to average body proportions. When chosing a size, please consider specifics of your own body.

Weight / Height 159-164 cm 165-170 cm 171-176 cm 177-182 cm 183 - 188 cm 189 - 194 cm 195+ cm
W 60-66 kg XS XS XS XS S
W 67-72 kg XS XS S S S
W 73-79 kg M M M M
W 80-88 kg L L M L L
W 89-98 kg XL XL XL XL XL
W 99+ kg XXL XXL XXL XXL
Sizing guide
Sizing guide

Product Reviews

5 / 5
23 reviews
  • Submitted 3.12.2025

    By STEPHANE MAURE Verified buyer

    From France

    Très satisfaisant

    Cuissard utilisé sur environ 1000 km, dans des températures de -2°C à 10°C. Pour ma part, ce sont les conditions idéales : à -2°C, le froid commence à se faire sentir (mais je pourrais sans doute rouler encore 1 ou 2°C au-dessous). A 10°C, c'est vraiment la limite haute, je commence franchement à avoir chaud. Le cuissard se fait totalement oublier, je n'ai eu aucun frottement ou aucune irritation ; l'intérieur est très confortable. La poche latérale est très pratique, pour un téléphone ou un porte-monnaie. J'aurais volontiers pris une deuxième poche de l'autre côté ! Niveau taille, j'ai pris du M pour 1m79 / 65 kg, c'est parfait. Je n'ai pas trop l'habitude d'Isadore, mais je suis très satisfait de cet achat !
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  • Submitted 29.11.2025

    By Mark James Verified buyer

    From United Kingdom

    Perfect

    Just great. Ideal for winter in the UK. Fit is spot on, 183cm, 80kg Size M. Had a minor issue with my order that was sorted really quickly by Natalia. Excellent customer service.
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  • Submitted 15.10.2025

    By Jiří

    Great warm tights

    It is warm enough to wear at about 0°C, great pad! Side pocket is a nice touch. With 180/89kg (i know, not typical rider) I have XL - just because of my thighs, either way L would be nicer fit.
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  • Submitted 17.4.2025

    By Rrs Verified buyer

    From Germany

    Top-Notch

    With 185cm /78kg one can go either with M or L, both will fit well, it is just a matter of personal feel choice on the skin. Colour, cut, material, seems... all in known isadore high quality
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  • Submitted 15.4.2025

    By Michael Kriegner Verified buyer

    From Austria

    Very good fit

    Bought it with help from Size Guide, Size M (1,84 m, 74 kg). At first I thougth it is too tight, but at the first ride I loves the perfect fit an especially the small mesh pouch on the right side!
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Signature Thermal Tights

Understanding where clothes come from is as important as their final quality, features, and design.
Origin of raw material

Origin of raw material

GRS®-verified recycled Polyamide from Spain, 
Elastane from Vietnam or Korea Polyamide from Italy, 
Polyester from Italy or Switzerland, Elastane from UK

Country of origin of the fabric

Country of origin of the fabric

Fabric from Italy with Oeko-Tex® Standard 100 label and Bluesign certification

Country of origin of the finished product

Country of origin of the finished product

Final product from Lithuania with Bluesign, Fair Wear and Higg index certifications