Marmot Isotherm Jacket

Weighs 364g (Medium size)
Code: AW15199
  • Now £155.99
  • (FREE UK & EU Delivery)
  • RRP £169.99
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  • Save: £14.00 (8%)
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The Isotherm Jacket is a lightweight synthetic jacket that is super warm and extremely breathable. Ideal for active use in cold conditions. 

Marmot says:

Whether backcountry skiing or ice climbing, the Isotherm Jacket is built for the active purists.

The lightweight 20-denier Pertex Quantum down-proof fabric is filled with Polartec Alpha insulation for warmth when you’re on the move; breathable Polartec Power Stretch panels allow uninhibited movement. Layer this incredibly lightweight puffy over a midlayer for warmth when you’re on the move.

|Pertex Quantum Fabric - Light enough to enable down to loft better, comfortable enough for next-to-skin. Click Logo to read more...
|Polartec Alpha, Overheating is Underperforming - So unlike traditional synthetic fill or down, Polartec Alpha allows a free exchange of air to keep you warm, comfortable and focused. Developed for U.S. Special Operations and now available for outdoor enthusiasts, it takes performance fabric—and you—to a totally new place. Click the Logo to read more...
|Polartec Powerstretch - Feature body hugging 4-way stretch and are very breathable. They keep you dry when you sweat and provide warmth without weight. These are the most versatile outdoor and fitness clothing fabrics available today. Click the Logo to read more...

The Isotherm insulated Jacket keeps you warm and dry, weather your hiking in cold conditions or climbing in the mountains. The outer shell is constructed from ultralight and ripstop Pertex Quantum fabric which provides excellent down and wind proof protection. The Polartec Power Stretch side panels gives the shoulders and sleeves excellent breathability and a four-way stretch for uninhibited movement. The Jacket is filled with Polartec Alpha synthetic insulation which provides warmth without the weight and is extremely breathable, allowing you to climb comfortably while still keeping you warm while you're belaying. The Angel-Wing Movement will also ensure freedom of movement when you're reaching for the anchors.

The Jacket features an AirExchange Lining that will help the jacket to breathe and has a bonus of feeling soft against your skin. There are 2 good sized hand warmer pockets with a a small chest pocket for storing a phone or other valuables. There is also a large interior mesh pocket that would be good for storing gloves or a hat. The elastic bound cuffs and elastic drawcord hem will help prevent cold air from getting in. The Isotherm Jacket is ideal for keeping warm during active use with out over heating.

- Reviewed by Ultralight Outdoor Gear

  • 20 Denier Pertex Quantum Fabric
  • Polartec Alpha Insulation
  • Polartec Power Stretch® Panels
  • Zip Hand Pockets
  • Zip Chest Pocket
  • AirExchange Lining
  • Interior Mesh Pocket
  • Elastic Bound Cuffs
  • Elastic Drawcord Hem
  • Angel-Wing Movement
  • Main Materials: Pertex Quantum 100% Nylon Mini Shadow Ripstop 1.0 oz/yd, Polartec Power Stretch Pro 37% Nylon, 42% Polyester, 16% Elastane 6.1 oz/yd
  • Insulation Material: Polartec Alpha
  • Center Back Length (Base of neck to bottom of hem): 27in
  • Fit: Regular Fit
  • Small weighs: 340g
  • Medium weighs: 364g
  • Large weighs: 394g
  • XLarge weighs: 412g
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