Dare2b size guide (Men):

Base Layers
SIZES S/M L/XL 2XL/3XL
Chest cm 97-102 106-112 119-127
  inches 38-40 42-44 47-50
Waist cm 81-86 91-102 106-122
  inches 32-34 36-40 42-48



Tops/Trousers/Salopettes
SIZES 2XS XS S M L XL 2XL 3XL 4XL 5XL 6XL 7XL 8XL
Chest cm 86 92 97 102 107 112 119 127  134 142 149 157 164
  inches 34 36 38 40 42 44 47 50 53  56 59 62 65
Waist cm 66 76 81 84 86 92 97 102 107 112 117 122 127
  inches 26 30 32 33 34 36 38 40 42 44 46 48 50



Inside Leg
  Short Regular Long
inches 30 32 34
cm 76 81 86



Gloves
  S M L XL
Palm Circumference (inches) 6.5 - 7.5 7.5 - 8.5 8.5 - 9.5 9.5 - 10.5
Palm Circumference (cm) 16.5 - 19 19 - 21.5 21.5 - 24 24 - 26.5