Front - Engine Red Group Detail Old Faithful Sweater lifestyle pic f14
Front - Engine Red Group Detail Old Faithful Sweater lifestyle pic f14
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Men's Old Faithful Sweater


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Just as the name implies, our Old Faithful Sweater is as trusted as your 4-legged companion. Layer it up at the dimming of the day, it’ll take you through the night in comfort and style. Our unique 12.8oz heathered sweater-knit polyester has a brushed interior for next-to-skin softness. Adjustable snap cuffs give it a jacket feel. 2 zip handwarmer pockets. 2 chevron snap chest pockets. Interior stash pockets. Grosgrain-reinforced interior windflap. Imported. Classic Fit.

• 12.8oz, 100% Polyester
• Heathered Sweater-Knit Face with Brushed Interior
• YKK® Zippers
• 2 Zip Handwarmer Pockets
• 2 Chevron Snap Chest Pockets
• Adjustable Snap Cuffs
• Interior Stash Pockets
• Grosgrain-Reinforced Interior Windflap
• Embroidered Logo Treatment on Back Right Shoulder
• Athletic Fit

Catalog Reference Number: 136

  • 12.8oz, 100% Polyester
  • Heathered Sweater-Knit Face with Brushed Interior
  • YKK® Zippers
  • 2 Zip Handwarmer Pockets
  • 2 Chevron Snap Chest Pockets
  • Adjustable Snap Cuffs
  • Interior Stash Pockets
  • Grosgrain-Reinforced Interior Windflap
  • Embroidered Logo Treatment on Back Right Shoulder
  • Athletic Fit
  • 23 Reviews
  • 5 Bison Rating
  • Write a review
  • Posted by: Curtis J.
    Location: Cedar Rapids, IA
    February 14, 2012

    • Navy Diver Olympics Approves Mk's Old Fatihful
    • 5 out of 5 Bison
    • We wanted to thank Erin and the team at MK for their support and their great products. I personally love the blue XL MK Old Faithful I have and wear it all the time. We test a ton of clothes and gear every year and we can say MK's clothing is top flight quality and very well priced. Keep up the great work, MK.

  • Posted by: John F.
    Location: Jackson, WY
    February 09, 2012

    • Old Faithful is an understatement
    • 5 out of 5 Bison
    • This coat rocks. It is soft, warm, comfy and gets more compliments everyday I wear it. The fit is great- I went XXL because I am a big boy and I love it. Rugged looking but nice enough to wear to dinner.

      Thanks MK's

  • Posted by: Cody P.
    Location: Greenwood, MS
    December 24, 2011

    • The best fitting best looking piece in the store...
    • 5 out of 5 Bison
    • Just visited an outdoor shop I worked at a few years back and they had this jacket in stock. Unfortunately, it was a little out of my budget at the moment, but I tried it on none the less. I'm 5`9 and the XL fit me to a t. The length was perfect, the fit of the shoulders was like a tailored sport coat and the fabric was impeccable. If you've got the money, and want a stylish piece that can be worn both outdoors with MK's or over a sport shirt with jeans, give this a shot. This style of jacket goes with everything in you're closet; a definite bang for your buck!

  • Posted by: Teddy Pango
    Location: Pittsburgh, PA
    October 30, 2015

    • Swacket
    • 4 out of 5 Bison
    • Sort of a sweater, sort of a jacket. Definitely a mid-layer with soft fleecy inside and knit outside. The pockets are mire fashion than function, but overall it works well over a t-shirt and under a coat.

  • Posted by: Justin S.
    Location: Windsor, CO
    September 08, 2015

    • Fits perfectly
    • 5 out of 5 Bison
    • Not only have I received numerous compliments on the jacket in the couple weeks I've had it (including my 4 year old daughter who told me I looked fancy), but it also fits perfectly. I have broad shoulders and a short torso and jackets typically don't fit well. The Old Faithful nailed it, and I'll be wearing it every chance I get!

  • Posted by: Kevin R.
    Location: Richmond, VA
    March 28, 2015

    • Good
    • 4 out of 5 Bison
    • I really like the look of the Old Faithful Sweater. It's perfect for when you want to stay warm but don't want to look like you're headed out to climb a mountain decked out in technical apparel. The weigh and feel of the material is superb and it seems like it will be durable and wear very well,over time. My only gripe is with the sizing. The catalog describes this as "athletic fit" so I sized up to a larger. I'm 73in tall with a 42in chest and I was swimming in it. I think describing it as a sweater is what threw me off. It fits more like a mid layer jacket. If you want to wear it as a true sweater then buy your normal size and don't go up. Exchanged it for a medium and it fits great. As always, MK customer service was the best.

  • Posted by: Rodney E.
    Location: East Boothbay, ME
    February 15, 2015

    • The Perfect Jacket
    • 5 out of 5 Bison
    • I have to recommend that if anyone is looking for a new jacket to be worn during cool weather or even as a layer in winter, this sweater jacket is a must have. The fit is perfect and the wool makes a nice, warm layer, especially when worn under a waterproof shell. I have worn this on multiple occasions in one of the worst winters in New England and it has kept me warm. The classic styling and athletic cut make for a sweater that will be worn for many years to come.

  • Posted by: Geoffrey B.
    Location: Ellicott City, MD
    January 18, 2015

    • Instant Favorite
    • 5 out of 5 Bison
    • This is such a great piece. I'm 6' 4", 175 and the medium fits well with long enough sleeves. Love the soft fabric. When other men compliment me on the sweater you know you have winner. Want one in every color!

  • Posted by: Alex W.
    Location: Blacksburg, VA
    January 10, 2015

    • Excellent Jacket/Sweater
    • 5 out of 5 Bison
    • I've had this jacket for a couple months now and can't wear it enough. Perfect for any activity. You won't regret buying the Old Faithful.

  • Posted by: John Patrick H.
    Location: Orem, Utah
    December 26, 2014

    • Looking good staying warm.
    • 5 out of 5 Bison
    • Heading out the door on a winter morning in Northern Utah, one cannot be prepared enough for the different varients of weather that can greet you throughout the day. What may seem like an ordinary cloudy, cold morning at 7am could very well turn into a blustery, snow-laden afternoon. Grabbing my Old Faithful sweater from my coat rack beside the door, I exit my abode with a confidence that I will be warm no matter what Utah weather decides to show up throughout the course of the day. A reliable companion, this sweater can be trusted for its warmth as well as for its looks.

  • Posted by: Greg D.
    Location: YONKERS, NY
    December 10, 2014

    • Perfect Sweater
    • 5 out of 5 Bison
    • This sweater is excellent. Warm enough to go without a coat even in the upper 30s. Please make more colors! Dark Green would be great.

  • Posted by: Luke T.
    Location: arlington, VA
    October 22, 2014

    • amazing jacket
    • 5 out of 5 Bison
    • for the price, this is incredibly warm, comfortable and i love it. It's perfect for everyday life, out and about whether it's just normal things or doing outdoor activity. I have pretty broad shoulders, opposite of all the slim fit stuff today, and it fits GREAT.

  • Posted by: Trenton L.
    Location: Fort Worth, TX
    September 13, 2014

    • Old Faithful
    • 5 out of 5 Bison
    • Amazing mid weight jacket/sweater/shirt. One of the best pieces of gear you can have from MK. Great cut, fit, and finish of product. You will not be disappointed.

  • Posted by: Chris O.
    Location: St Paul, MN
    August 21, 2014

    • Who needs anything else?
    • 5 out of 5 Bison
    • Love this sweater! I wear them all the time when the weather cools - I have 4 colors! They look good with jeans, khakis, ski pants, my wife... :) Super versatile, and warm. Starting to "wear" in all the right ways, which just makes it even cooler! The perfect sweater!

  • Posted by: Michael W.
    Location: Anderson, SC
    March 24, 2014

    • My go to jacket
    • 5 out of 5 Bison
    • I have trouble calling this a sweater. I have worn this every day since I bought it, and get tons of compliments. It looks good whether a little dressy or a little dressed down. Great quality and super soft, but appears that it will wear well.

      I am 6'2, 190, with broad shoulders and long arms. I bought and XL and it fits perfectly.

  • Posted by: Theodore H.
    Location: Pelham, NY
    March 13, 2014

    • Impressed
    • 5 out of 5 Bison
    • Was a little skeptical given all the 5 of 5 bison reviews but have to say now that I have one of these (in blue), it's pretty fantastic. I wear as a cardigan in my house and, if it's warm enough, as a jacket outside (actually temps have just dipped into the 20s and it still keeps you warm on its own at least for a while). Fits great too, which is surprising because few things fit me right. I'm 5'9" and 175lbs and the medium fits perfectly -- almost like i had it tailored; arm length shoulders, all great.

  • Posted by: Benjamin T.
    Location: Nokomis, FL
    February 24, 2014

    • Which color next
    • 5 out of 5 Bison
    • The fact is I really don't need another one. Its the perfect jacket/sweater. I wear it as a winter sports coat making sales calls and it looks great. Its perfect for travel and has logged many a mile and still looks like a million bucks. The red or dark grey....hmmmm. Decisions, decisions. Maybe both.

  • Posted by: JP
    Location: Arlington, VA
    December 02, 2013

    • Great deal
    • 5 out of 5 Bison
    • This is a great looking sweater and a nice fit (6'1 195 lbs) in Large. I consider it more of a jacket and don't think of it as a cardigan type sweater. It's warm and the oatmeal color is money. Definitely will standout and not look like a soft shell clone. Highly recommended.

  • Posted by: Benjamin T.
    Location: Ann Arbor, MI
    November 15, 2013

    • Rugged and good looking...double threat!
    • 5 out of 5 Bison
    • This sweater/jacket is wonderful! Just received mine a few days ago and it has not come off! It looks wonderful, is warm and comfortable and the attention to detail is what keeps me coming back to MK. The bison snaps, chevron pockets, lined pockets, make this sweater great. Looks sharp walking around town but also looks like it will stand up to days in the woods. I ordered one size up than I normally do and it fits perfect...I am 6'0 about 210lbs and the XL fits great!

  • Posted by: Kevin E.
    Location: Clinton, CT
    May 06, 2013

    • Faithful and Versatile!
    • 5 out of 5 Bison
    • The MK Old Faithful sweater certainly lives up to its name. I've been wearing mine for almost a year now and it gets better with each day. The jacket is soft and warm as well as form-fitting and stylish. I wear it to and from the martial arts school, to work and out and about to the bars. It never looks out of place. The construction of the sweater is top notch and after repeated use, I can say no aspect of the design is flawed. The zippers don't snag, the stitching doesn't come undone and the button snaps don't rip out. The jacket shows light pilling but then again, what jacket or garment won't after this much use. More importantly, despite regular contact against suitcase and backpack straps as well as resting on my elbows, the fabric on shoulder and elbow areas is not worn down or abraded. The MK Old Faithful sweater is great for layering underneath the MK Stagecoach Jacket (Equally as awesome and faithful as the Old Faithful) I just purchased. It is a great stand alone jacket for the fall and for early spring. I've used this jacket as a pillow on long flights, as a ground cloth at the beach and as a blanket when pulled over on the side of the road during long road trips. Other than "faithful" I would describe this jacket as versatile. I already plan on buying another MK Old Faithful Jacket in another color. Hell, if you can have multiple colors of Mountain Khakis pants, why not jackets too? You really can't go wrong with this jacket. I promise you it will become a faithful companion on all your trips as well.

  • Posted by: Matt H.
    Location: Olympic Valley, CA
    January 03, 2013

    • Awesome Jacket!
    • 5 out of 5 Bison
    • This is by far the best jacket I have owend in years. It's a perfect three season jacket and can even been used on cool summer nights. It looks great at the bar, or at a nice restaurant with my wife. This may be my favorite MK product! Matt

  • Posted by: Spencer L.
    Location: Charlotte, NC
    December 11, 2012

    • You decide
    • 5 out of 5 Bison
    • Is it a jacket? Is it a sweater? To me, it's a zip up sweater. My blue Old Faithful tends to look and act like a jacket, but the soft hand and comfort are those of a sweater. I think MK got it right with this one, no matter what you decide to call it.

  • Posted by: Adam K.
    Location: Toronto, ON
    May 01, 2012

    • Go-To sweater for all occasions
    • 5 out of 5 Bison
    • I have the charcoal in a size Large. I wear it to work with a collared shirt underneath, I wear it to walk the dog, I wear it with jeans when I'm going out and I wear it when I'm hanging out around the house. When I recently travelled to Europe it was the only sweater I brought, I wore it out to a fancy dinner and then skied in it the next day. Amazingly versatile clothing item.

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