Marmot Men's Size Chart & Fit Guide


Chest (cm) Waist (cm)
X Small 84-89 69-74
Small 91.5-96.5 76.5-78.7
Medium 99.5-104.5 81.5-84
Large 107-112 86.5-91.5
X Large 114.5-119.5 94-99

How to Measure Your Chest & Arm Length



  • Wear just an undergarment or nothing at all.
  • Stand up straight with your arms hanging by your sides and breath normally.
  • Run a soft tape measure under your arm pits over the largest part of your chest and across your shoulder blades.
  • The tape measure should be snug, but not tight.
  • Ask a friend to run a soft tape measure from the centre of the back of your neck, across to the tip of one shoulder, then down the outside of your arm to your wrist bone.
  • The Fit

    Marmot is grounded in the principle of garments working with the natural movement of the body, with every garment designed to enhance, not restrict performance. Marmot clothing comes in a variety of fit styles. Check the product description to see which fit best suits your chosen activity and conditions.

  • Athletic: Tops - tailored in the shoulder with a fitted hem | Pants & Trousers - fitted at the waist, thru knees with a fitted cuff opening.
  • Semi-Fit: Tops only - Relaxed shoulder with a tapered hem
  • Regular: Tops - relaxed shoulder with straight hem | Pants & Trousers - fitted waist, tapers at knees with straight cuff opening.
  • Relaxed: Dropped shoulder with loose hem | Pants & Trousers - Relaxed at the waist, slight taper at the knee with straight cuff opening.
  • Loose: Pants & Trousers only - loose at the waist, straight thru knees with straight cuff opening.


  • Still not sure what size to get? We're here to help!

    Check out our Buying Guides for technical tips and tricks.

    Try several and use our Low Cost 30 Day Returns.

    Visit our Help Centre for advice from our team.