Reactor Polartec Jacket

Find your Marmot fit using the size charts below. All body measurements are in centimetres, not garment dimensions.

Men's Tops - Regular Sizing

For jackets, fleeces, shirts and other upper-body clothing.

Men's Bottoms - Regular Sizing

For pants and shorts labelled XS through XXL.

Men's Bottoms - Numerical Sizing

For pants and shorts sold in numerical waist sizes.

Men's Pants - Inseam Lengths

Inseam lengths are manufacturer's reference lengths. Not all pants are available in every length.

Men's Big & Tall Sizing

For garments specifically labelled Big or Big & Tall.

Big & Tall: Tall versions offer additional length and have separate sleeve and fit measurements. Refer to the individual product's sizing information.

How to Measure

1. Chest: Measure under your arms and around the fullest part of your chest.
2. Natural waist: Measure around the narrowest part of your waist, where your body creases when bending sideways.
3. Hips: Stand with your feet together and measure around the fullest part of your hips.
4. Sleeve: Measure from the centre back of your neck, over your shoulder and down to your wrist.
5. Inseam: Measure from the crotch seam to the hem of a pair of pants that fits you well.

Finding Your Fit

Marmot offers different garment fits, including Athletic, Semi-Fit, Regular and Relaxed. The intended fit can vary between products, so check the individual product description before choosing your size.

Please note: These charts are based on Marmot's official size guide. Measurements are rounded to the nearest centimetre. Garment-specific sizing may vary.