Browsing outside of North America? Visit Global Site
0
You have no items in your shopping cart.
Synthesis Mid GTX

Synthesis Mid GTX

$185.00
The Synthesis Mid GTX is a mid-cut synthetic hiker designed for comfort and versatility on the trails. Nano-Cell™ uppers and Gore-Tex® Surround™ technology ensure best-in-class breathability.
Required Fields
Size chart

ADULT FOOTWEAR SIZING CHART

More sizes means a better fit! La Sportiva shoes are built on European half sizes which are smaller increments than US half sizes. This gives us five extra sizes per size run, which gives you a better fit!
MEN'SEUROPEANWOMEN'S
  33 2.5
  33.5 3
2.5+ 34 3.5
3 34.5 4
3.5 35 4.5
4 35.5 5
4.5 36 5.5
4.5+ 36.5 5.5+
5 37 6
5.5 37.5 6.5
6 38 7
6.5 38.5 7.5
6.5+ 39 7.5+
7 39.5 8
7.5 40 8.5
8 40.5 9
8.5 41 9.5
8.5+ 41.5 9.5+
9 42 10
9.5 42.5 10.5
10 43 11
10.5 43.5 11.5
10.5+ 44 11.5+
11 44.5 12
11.5 45 12.5
12 45.5 13
12.5 46 13.5
12.5+ 46.5 13.5+
13 47 14
13.5 47.5  
14 48  
15 49  
16 50  
loader
Email to a Friend More
  • Features
  • Product Information
  • Reviews
Features

• Innovative Nano-Cell™ Technology upper wraps the foot in protection while allowing maximum breathability and waterproof protection

• Gore-Tex® Surround™ Technology allows 360 degree breathability without compromising the waterproof nature of the boot

• STB™ Technology stabilizes the foot by wrapping and unifying the midsole with the upper for the perfect locked-down fit

• AWARDS: Backpacker - Editors' Choice 2015, Outdoor Industry Award 2014

 

Synthesis Mid GTX - Award Logos

Product Information

ITEM NUMBER: 14P
SIZES: 38 - 47.5 (half sizes)
WEIGHT: 14.6 oz (415g)
LAST: Tempo
UPPER: AirMesh / Nano-Cell™ direct injection / PU leather
LINING: Gore-Tex® Surround™
MIDSOLE: Compression molded EVA / TPU inserts
SOLE: Vibram® Nano with Impact Brake System™

Reviews

Customer Reviews

1-10 of 18

  1. 1
  2. 2
per page
Great Design!
Love the speed lacing system and roomier toe box. They offer great support and are perfect for fast hiking.
Quality
Price
Value
Review by Nick T. (Posted on 5/14/2018)
Very Cimfortable
My husband has 2 pairs of these, both colors, and loves them. They keep his feet dry plus they are super comfy and supportive. I have the womens version and could not agree more.
Quality
Price
Value
Review by HoneyB (Posted on 5/4/2018)
Comfy and versatile
I'm on my third pair of these. They are really light and breath better than any other gore tex shoe I've worn. They are kind of like a running shoe in terms of weight and cushioning and you can expect to have about the same lifespan as a running shoe. This is made to be high performance hiking, not a burly boot that lasts ten years. As long as you know what to expect, these are a great hiking shoe.
Quality
Price
Value
Review by Jay (Posted on 4/27/2018)
Love them! I recommend them to everyone!
Had them for 2 years and am ready for some new laces and maybe the inner sole liner. They are so lightweight and comfortable and I can wear them all day long. I am a happy camper with these!
Quality
Price
Value
Review by C (Posted on 4/26/2018)
Good for a couple of years
I bought a pair of these for winter walks in February 2016 and found them to be very light, comfortable, warm and waterproof. However, within a year, cracks started to appear in the outer shell around the toes (though they remained waterproof). Just after two years, the soles of both sides started to become detached from the toe area, making them difficult to use and no longer waterproof. I attempted to make a warranty claim from La Sportiva but was told the boots had 'evidently worn out' - which is not great for $185 footwear. So, enjoy them while they last!
Quality
Price
Value
Review by Simon Fullalove (Posted on 4/17/2018)
Great shoe!
SO far I love this Synthesis mid.
The first time I wore these I hiked Mt. Ellinor in Olympic N.P. in WA.
Then I hiked the upper skyline Trail in Rainier with them.
Then it was on to Pinnacle Peak in Rainier.
Love the comfort, the lace system, the major breathability, and that they don't need much breaking in if at all.
Keep up the good work La Sportiva!
Quality
Price
Value
Review by Steve Lahr (Posted on 2/17/2018)
best hiking shoe ever
Best hiking boots ever. Super light, super comfortable, can handle backpacking and hiking. Of course, I'm the type that prefers backpacking in running shoes over big heavy boots. Re durability - no, not as durable as big heavy boots, but far more durable than running shoes, and far more water resistant. They breath well too!

And if the laces wear out, it's not hard to replace them... to address another review. Worn out laces, but the boots are still fine.
Quality
Price
Value
Review by Val (Posted on 1/4/2018)
Nice and light
I love the comfort of these shoes. I have put over 300 miles of hiking (100,000 vertical feet) in all weather. I used them as an approach shoe on a 34 mile round trip climb up Glacier Peak in Washington State with a full backpack.They are still waterproof. However the heels have become mushy and my feet now roll/rotate inwards at the heel. It might be in part to my pronation but I have not had this problem with other hiking shoes. Now 300+ miles isn't too bad for a hiking shoe but for the money I was hoping to get closer to 600+ miles.
I have not had any problems with the lacing system like some people have mentioned.
Quality
Price
Value
Review by Lawrence K (Posted on 11/22/2017)
Just not durable and not worth the money
I was really impressed by the shoe initially and I honestly loved them. I thought they were spendy at $185 but I liked them a lot. The first pair lasted literally three weeks until a hole developed right in the bend point behind the ball of the foot where the cloth meets the front padding making it so the shoe was no longer waterproof. I exchanged these for a new pair and they determined that these were just defective. The next pair lasted about a month until the lacing system broke. They don’t sell replacement laces so I found some 4mil cord and made laces for these shoes so that I could wear them again. I hunted all over town to find a replacement for the lace system but was unsuccessful. The new laces eventually after 3more weeks wore through the fabric lace ferrels that are sown to the shoe. These are not very sturdy and seems to be another design flaw. I can’t wear the shoe anymore once again. They only lasted 2.5 months and for 2 pairs eventhough I did not wear them that often, so you can expect this hiking boot to last a little over a month!!!!! I think these shoes are great but they are not durable at all due to some very significant design flaws.
Quality
Price
Value
Review by Evan Blair (Posted on 10/14/2017)
Too narrow
Too narrow. After 6-8 hours there is no give width wise as your feet swell from use.
Quality
Price
Value
Review by Big Bear (Posted on 9/28/2017)
Features

• Innovative Nano-Cell™ Technology upper wraps the foot in protection while allowing maximum breathability and waterproof protection

• Gore-Tex® Surround™ Technology allows 360 degree breathability without compromising the waterproof nature of the boot

• STB™ Technology stabilizes the foot by wrapping and unifying the midsole with the upper for the perfect locked-down fit

• AWARDS: Backpacker - Editors' Choice 2015, Outdoor Industry Award 2014

 

Synthesis Mid GTX - Award Logos

Product Information

ITEM NUMBER: 14P
SIZES: 38 - 47.5 (half sizes)
WEIGHT: 14.6 oz (415g)
LAST: Tempo
UPPER: AirMesh / Nano-Cell™ direct injection / PU leather
LINING: Gore-Tex® Surround™
MIDSOLE: Compression molded EVA / TPU inserts
SOLE: Vibram® Nano with Impact Brake System™

Reviews

Customer Reviews

1-10 of 18

  1. 1
  2. 2
per page
Great Design!
Love the speed lacing system and roomier toe box. They offer great support and are perfect for fast hiking.
Quality
Price
Value
Review by Nick T. (Posted on 5/14/2018)
Very Cimfortable
My husband has 2 pairs of these, both colors, and loves them. They keep his feet dry plus they are super comfy and supportive. I have the womens version and could not agree more.
Quality
Price
Value
Review by HoneyB (Posted on 5/4/2018)
Comfy and versatile
I'm on my third pair of these. They are really light and breath better than any other gore tex shoe I've worn. They are kind of like a running shoe in terms of weight and cushioning and you can expect to have about the same lifespan as a running shoe. This is made to be high performance hiking, not a burly boot that lasts ten years. As long as you know what to expect, these are a great hiking shoe.
Quality
Price
Value
Review by Jay (Posted on 4/27/2018)
Love them! I recommend them to everyone!
Had them for 2 years and am ready for some new laces and maybe the inner sole liner. They are so lightweight and comfortable and I can wear them all day long. I am a happy camper with these!
Quality
Price
Value
Review by C (Posted on 4/26/2018)
Good for a couple of years
I bought a pair of these for winter walks in February 2016 and found them to be very light, comfortable, warm and waterproof. However, within a year, cracks started to appear in the outer shell around the toes (though they remained waterproof). Just after two years, the soles of both sides started to become detached from the toe area, making them difficult to use and no longer waterproof. I attempted to make a warranty claim from La Sportiva but was told the boots had 'evidently worn out' - which is not great for $185 footwear. So, enjoy them while they last!
Quality
Price
Value
Review by Simon Fullalove (Posted on 4/17/2018)
Great shoe!
SO far I love this Synthesis mid.
The first time I wore these I hiked Mt. Ellinor in Olympic N.P. in WA.
Then I hiked the upper skyline Trail in Rainier with them.
Then it was on to Pinnacle Peak in Rainier.
Love the comfort, the lace system, the major breathability, and that they don't need much breaking in if at all.
Keep up the good work La Sportiva!
Quality
Price
Value
Review by Steve Lahr (Posted on 2/17/2018)
best hiking shoe ever
Best hiking boots ever. Super light, super comfortable, can handle backpacking and hiking. Of course, I'm the type that prefers backpacking in running shoes over big heavy boots. Re durability - no, not as durable as big heavy boots, but far more durable than running shoes, and far more water resistant. They breath well too!

And if the laces wear out, it's not hard to replace them... to address another review. Worn out laces, but the boots are still fine.
Quality
Price
Value
Review by Val (Posted on 1/4/2018)
Nice and light
I love the comfort of these shoes. I have put over 300 miles of hiking (100,000 vertical feet) in all weather. I used them as an approach shoe on a 34 mile round trip climb up Glacier Peak in Washington State with a full backpack.They are still waterproof. However the heels have become mushy and my feet now roll/rotate inwards at the heel. It might be in part to my pronation but I have not had this problem with other hiking shoes. Now 300+ miles isn't too bad for a hiking shoe but for the money I was hoping to get closer to 600+ miles.
I have not had any problems with the lacing system like some people have mentioned.
Quality
Price
Value
Review by Lawrence K (Posted on 11/22/2017)
Just not durable and not worth the money
I was really impressed by the shoe initially and I honestly loved them. I thought they were spendy at $185 but I liked them a lot. The first pair lasted literally three weeks until a hole developed right in the bend point behind the ball of the foot where the cloth meets the front padding making it so the shoe was no longer waterproof. I exchanged these for a new pair and they determined that these were just defective. The next pair lasted about a month until the lacing system broke. They don’t sell replacement laces so I found some 4mil cord and made laces for these shoes so that I could wear them again. I hunted all over town to find a replacement for the lace system but was unsuccessful. The new laces eventually after 3more weeks wore through the fabric lace ferrels that are sown to the shoe. These are not very sturdy and seems to be another design flaw. I can’t wear the shoe anymore once again. They only lasted 2.5 months and for 2 pairs eventhough I did not wear them that often, so you can expect this hiking boot to last a little over a month!!!!! I think these shoes are great but they are not durable at all due to some very significant design flaws.
Quality
Price
Value
Review by Evan Blair (Posted on 10/14/2017)
Too narrow
Too narrow. After 6-8 hours there is no give width wise as your feet swell from use.
Quality
Price
Value
Review by Big Bear (Posted on 9/28/2017)