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Icebreaker RealFleece 260 Sierra Jacket- Merino Wool, Full Zip (For Men)

Item #5243J
$99.95 Save 44% Compare at $180.00
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About Icebreaker RealFleece 260 Sierra Jacket- Merino Wool, Full Zip (For Men)

Discontinued. Icebreaker's RealFleece 260 Sierra jacket is a midweight base layer that amazes with its versatility. Moisture-wicking merino wool with a brushed interior is soft enough to wear against bare skin and also ideal for layering under a shell in cold temps.


Specs about Icebreaker RealFleece 260 Sierra Jacket- Merino Wool, Full Zip (For Men)

  • Closure: YKK®,Zipper
  • Zipper: Left
  • Length: 28" (based on size large)
  • Fabric: 100% merino wool
  • Care: Machine wash, hang to dry
  • Total weight: 1 lb.
  • Made in China or Viet Nam
  • Visit our Wool Guide
  • US shipments only


Icebreaker Mens Size Chart

Shirts and Jackets S M L XL 2XL 3XL
Neck 13 - 14 14 - 15 15 - 16 16 - 17 17 - 18 18 - 19
Chest 33 - 36 36 - 39 39 - 42 42 - 45 45 - 48 48 - 52
Arm Length 34 34 - 34.5 34.5 35 35.5 36
Bottoms S M L XL 2XL 3XL
Waist 27 - 30 30 - 33 33 - 36 36 - 39 39 - 42 42 - 46
Hip 34.5 - 37 37 - 39.5 39.5 - 42 42 - 44.5 44.5 - 47 47 - 50.5
Height 5'10" 5'10" 5'11" 6' 6'1" 6'2"

Note: Measurements are in inches


Do you own this product? Write a review and help others with their buying decisions!

4.718750 5 Overall Rating: 4.7 Based on 64 reviews

Most Helpful 5-Star Review

Reviewed by MV from NJ on Sunday, February 24, 2013
I love this realfleece. It is super comfortable and toasty warm. Windproof enough for under 5-10 mph winds. Layers well. Nice pockets. Zipper tabs are nice heavy duty, wide metal with a little rubber for glove traction. These zipper tabs are not going to break on you! As others have noted, ... Read More
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  • Reviewed by Brown County Bob from Indiana on Thursday, April 23, 2015
    I purchased the Real Fleece Jacket one year ago, but have had limited opportunities to use this. I just returned from a trip to Montana. I received complements on my jacket from my brother and his fishing friend - both asked me to send the item information since each of them wants the same jacket. I drove from Indiana to Billings and back, camping in a tent at State Parks during the drive there and back. Most evenings the outside temp was in the low 30s (one night reached 27 degrees), accompanied by wind. At night I used the Icebreaker Real Fleece as a layer and it kept me quite warm. My wife and I are planning to walk the Camino de Santiago in the fall and both of us will bring our Icebreaker Real Fleece as our primary layer during the 500 mile hike.
  • Verified Buyer Reviewed by Lighter load from NY on Sunday, January 4, 2015
    I got this for the office as we constantly have the AC (even in the winter!) and this warms me up right away. Keep in mind it's not a sweater and looks better on outdoor treks but it definitely does the job.
  • Verified Buyer Reviewed by Tahoesteve from Ca on Wednesday, December 3, 2014
    This is a great sweatshirt or mid layer, however it has a lady's zipper on it, which though slightly irritating, is overlookable for the cost savings.
  • Reviewed by John Colter from Bellingham, Washington on Friday, November 14, 2014
    Reading the other reviews, I bought this jacket one size larger to fit my height and weight: 6'2" and 195 pounds. XL fits me a little loosely in the shoulders, but I think an L would have been too snug and short.

    Cargo is actually a greenish-gray, pleasant, even sharp, but not outstanding.

    The zipper is on the wrong side, and there is a chunk cut in the tag, so I'm sure this jacket is a second. Somehow the Vietnamese manufacturer got ahold of women's zippers. No worries, it works just as well, but I think Sierra Trading Post should have noted that in the description.

    Overall, though, I'm satisfied enough to keep the jacket.
  • Verified Buyer Reviewed by Hobo Cyclist from Wisco! on Monday, October 13, 2014
    Nice fit. Great to find something thats not size 42-44 chest.
    Wear alone or seems good as a layer when winter comes. - Curse you polar vortex!

Question & Answer

Questions about this product? Get answers from community and staff experts.

  • “Will this zip into a Marmot Cornice shell?”
    Asked by Dan from Indiana on 9/25/2014 7:29:42 PM
    • Yes. It's thin, light, yet warm. i'm 6'2", 175. size large is a good fit. xl works if you like it a little baggy. I have both sizes.
      Answered on 9/25/2014 7:41:27 PM by Gator from darien
    • I purchased this for the Marmot Cervino jacket. I do not know if it will fit into the Cornice. I can tell you that as a fleece liner it is fairly light and it pills heavily on the collar against the neck. I'm not too impressed with it but bought it because it was the only Marmot liner that would fit the Cervino. Sorry I can't help you much.
      Answered on 9/25/2014 10:09:58 PM by klkks from Montana
  • “From the pictures, the 1st color "Cargo" seems to have a different style (better looking) than all the other colors. I like to confirm that this is the style I get if I order "cargo".”
    Asked by trekker_J from Connecticut on 5/21/2014 6:58:32 AM
    • Cannot speak to the Cargo style. I purchased this jacket for my husband in the Nova color. I can say that the jacket is excellent. Lightweight, warm and wears much nicer than his previous columbia fleece jacket. Good luck
      Answered on 5/21/2014 8:20:20 AM by TO from MT
    • Sorry, I'm a purchaser/reviewer of a product I bought. I did get the product color and style I ordered as shown in the photo. The Cargo color and style were not available when I ordered. I understand your question about the different style, but you will have to call STP to get your question answered by them. They have friendly customer service.
      Answered on 5/21/2014 9:08:29 AM by klkks from Montana
    • Yes, I purchased this item by Icebreaker and it is like the picture shows. I'm currently on vacation in Alaska and it is a good weight for 1st or second layer.
      Hope this helps.
      Answered on 5/21/2014 1:21:59 PM by zbillybadd from land of 10,000 lakes
  • “is the green really as bright bright green as the picture looks? thanks1”
    Asked by Danielsomers from Unknown on 1/7/2013 12:00:00 AM
    • Item 5243J is a true Grove/Cave Green.
      Answered on 1/8/2013 12:00:00 AM by Anonymous from Unknown

About Icebreaker

Crafted using only the finest merino wool grown in New Zealand’s Southern Alps, Icebreaker clothing is known around the globe for its incredible comfort and performance. Unlike synthetic fabrics developed in a lab, Icebreaker merino wool is grown, cultivated and field-tested in the mountains. Designed to offer exceptional comfort during a range of outdoor sports, Icebreaker underwear and apparel naturally resists odors, regulates body temperature, wicks moisture and dries quickly. Superfine New Zealand merino wool is also much softer than traditional sheep’s wool, which means no itch. Icebreaker socks, long underwear and base layers also come in a selection of weights to keep you warm without overheating. Ready to join the merino revolution?