Size Guide

The size charts below detail the relevant sizing or points of measurement for all of our products. Our garments do not need to be tight and against the skin for our infrared technology to work, so we suggest fitting to your personal preference. If you are looking for a looser fit, then size up from the guide's suggestions.

Unisex Sizes

Size S M L
K-Mask: Head Circumference (UK Only) 45cm – 55cm 50cm – 60cm 55cm – 65cm
Socks & Sleeves Foot Size (UK) 3 - 5 6 - 9 10 - 13
Socks & Sleeves Foot Size (USA) 5 - 6 7 - 10 11 - 14
Socks & Sleeves Foot Size (EU) 35 - 38 39 - 42 43 - 47
Socks & Sleeves Calf Size (All) 34cm - 39cm 37cm - 42cm 40cm - 45cm

Glove Sizes

Size XS S M L XL
Gloves 17cm 17.5cm 18cm 18.5cm 19cm
Gloves (when worn as a liner) 17.5cm 18cm 18.5cm 19cm 20cm

Women's Sizes

Size XS S M L XL
Tops (Chest, UK) 8 10 12 14 16
Leggings & Shorts (Waist, UK) 8 10 12 14 16
Tops (Chest, USA) 4 6 8 10 12
Leggings & Shorts (Waist, USA) 4 6 8 10 12
Tops (Chest, EU) 36 38 40 42 44
Leggings & Shorts (Waist, EU) 36 38 40 42 44

Men's Sizes

Size XS S M L XL XXL
Tops (Chest) 34" - 36" 36" - 38" 38" - 40" 40" - 42" 42" - 44" 46" - 48"
Leggings & Shorts (Waist) 28" 30" 32" 34" 36" 38"
Leggings & Shorts (Inner Leg) 27" - 28" 28" - 30" 30" - 32" 34" - 34" 34" 34"