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Reviews > Health & Safety > First Aid Kits > ENGO Blister Prevention Patches > Pam Wyant > Test Report by Pamela Wyant

Engo Blister Prevention Patches



Tester Information:
 
Name:  Pam Wyant
Age:  48
Gender:  Female
Height:  5 ft 5 in (1.65 m)
Weight:  165 lb (77 kg)
Shoe size:  US women's 9
E-mail address:  pamwyant(at)yahoo(dot)com
Location:  Western West Virginia, U.S.A.

Backpacking Background: 

Finally pursuing a long-time interest, I started backpacking 3 years ago.  I've progressed from day-hiking and single overnights my first year, to weekend trips the second, and finally to a 7-night trip on the Appalachian Trail in Georgia this year.  I hike and backpack mainly in the hills and valleys of West Virginia, and generally use a hammock sleeping system.  In general my backpacking style is lightweight and minimalist without giving up safety or comfort, and I’m always interested in ways to lighten my pack a bit more.


E-STR Six Pack

Initial Report - September 12, 2006

Product Information:

Manufacturer:  ENGO
Year of manufacture:  2006
Date of Delivery:  September 6, 2006
Item:  E-STR Six Pack plus one 3" x 4" (8 cm x 10 cm) rectangle
Advertised Weight:  not available
Weight as delivered:  rectangle 0.1 oz (2.8 g); ovals under 0.1 oz (2.8 g) each
                                (2 small & 2 large ovals together weigh 0.1 oz or 2.8 g)
Manufacturer Website:  http://www.goengo.com

MSRP:   $11.95 US for the E-STR Six Pack
                (rectangles not available individually)

Several different combination packages are available at varied prices.

Product sizes:
Small Oval        listed: 2 x 1.5 in (5.1 x 3.8 cm)
                        measured:  1.9 x 1.5 in (4.8 x 3.8 cm)
Large Oval        listed:  2.75 x 1.75 in (7 cm x 4.5 cm)
                         measured:  2.75 x 1.75 in (7 cm x 4.5 cm)
Rectangle          listed:  3 x 4 in (8 x 10 cm)
                         measured:  2.75 x 3.75 in (7 cm x 9.5 cm)

Product Description:

The patches

The Engo Blister Prevention Patches are a thin (.012 in or .03 cm thick) laminated patch consisting of a friction resistant film on top, a white fabric middle layer for stability, and a pressure sensitive adhesive bottom layer.  The adhesive is protected by a peel away layer of paper.  The patches have a bright blue surface that reminds me of a theme notebook cover in appearance and feel.  They are designed to attach to footwear or other gear to prevent friction that causes blistering, and to help heal existing blisters faster, according to the manufacturer.

The small ovals are designed to be used in the toe area; the large oval on the heel, arch, ball or side of the foot, and the rectangle patch to be used on equipment or cut to fit other areas exposed to excessive friction and prone to blistering.  The products are somewhat unique in that they are designed to attach to the shoe or gear instead of being applied directly to the skin, which should result in them lasting longer than blister treatment products.

The E-STR Six Pack provided me includes 2 small and 4 large ovals in a cardstock weight folding brochure encased in a small (3 x 6 in or 7.5 x 15 cm) plastic zipper seal bag, and Engo included a rectangle patch within the package.   The full color brochure includes a section of user tips, a reference to their website address, directions on how to apply the patches, and ideas on what type of footwear and equipment to apply the patches to.

The patches are much as I expected from the website description, although I was somewhat surprised by the thinness and slick texture.

Preliminary Installation:

I installed a set of the large ovals in my year old Dunham WaffleStomper Terrastryder Lows,
which for the first time ever,  gave me terrible blisters on my last trip, likely due to holes that have worn in the heel area.
Heel before applying patch

The paper backing was easy to separate from the patch itself. 
Engo recommends removing part of the paper and leaving a "tab" to hold the patch while applying the exposed part of the patch, then completely removing the backing and smoothing the remainder of the patch in place.  This worked extremely well.
Patch partially applied
The patch was easy to apply where I wanted it, and simple to smooth into place.
After applying the patches, it was easy to slide my feet into the shoes, and the patches don't feel bulky.

Likes –

Easy to apply
Sleek and thin (not bulky)

Dislikes –

None so far

Field Report - November 21, 2006 

I have used the Engo Blister Prevention patches for about two months now.  The first significant trip I used them on included a trip to the Spruce Knob Lake area of West Virginia (elevations from around 3850 ft or 1170 m to the highest elevation in the state of 4861 ft or 1482 m at Spruce Knob Mountain).  Temperatures ranged in the 35 - 55 F (2-13 C) range.  This was to be a one night backpacking trip with one night of car camping, but it turned into a two night car camping trip with a day hike of about 6 mi (7 km) due to heavy rainstorms and the group decision not to chance creek crossings and overnight stays in the backcountry in the stormy conditions.  The Blister Prevention patches held up well on this trip and made slipping into and out of my shoes very easy due to the slick patch at the heel.  Even with my worn shoes, I experienced no problems with blisters on this trip.

The next significant trip I used the patches on was in early October, for a two night backpacking trip to the Cranberry Backcountry region of West Virginia (elevations from 2800-4100 ft or 850 -1250 m).  Temperatures ranged from about 35 - 60 F (2-16 C), with rain showers most of the first day, a hip deep creek crossing, and a lot of dampness and humidity the second and third days.  On this trip, the Blister Prevention patches didn't fare as well.  One completely fell apart, with the top layer wadding up and sliding down my heel.  I felt the discomfort of a blister beginning, and had to stop and add a bandaid and a top covering of duct tape to the back of my heel to prevent further damage.  I would have replaced the patch, however unfortunately my shoes were still soaked from all the rain, dampness, and humidity (the Goretex lining having failed due to wear) and I knew a replacement patch would not have stuck, per the manufacturer's directions to apply them to DRY footwear.  A photo of the deteriorated patch (and its still good mate) is shown below.

Deteriorated patch

To further test the patches, I cut the large rectangular patch provided to cover the buckles on a pair of sandals I have been unable to wear for any significant walking due to the tendency of the buckles to create large blisters in the area just behind my toes within minutes of setting out walking.  I was able to customize the fit fairly well even though the buckle is triangular in shape.  The sandals don't look very fashionable with the patches showing, but I was happy to find I am now able to wear them comfortably and even hiked 3 miles (5 km) in them.  A photo of the sandal patch is shown below.

Sandal buckle with patch

I pretty much concluded my old hiking shoes were beyond repair, so I applied a new set of large ovals to the heels of my reserve pair of Vasque hiking shoes.  I had a bit of trouble getting these smoothly in place, probably because the heel of the Vasque shoes seems to have a little narrower opening than my older Dunham Terrastryders.  I had to remove and reposition one of the patches, which isn't really recommended.  I also applied a set of the small ovals to the front of the footbed, where I sometimes get calluses on the bottoms of my toes and to the corresponding area at the front of the shoe.  Getting the oval smoothly into place in the toe box was a little tricky, and I ended up with slight bumpy areas, but they haven't created blisters or problems so far.  I've worn the Vasques with the Blister Prevention Patches in place at several Girl Scout weekend campouts and outdoor training weekends, and for several day hikes, including a 10 mile section of the Appalachian Trail (AT) not far south of Damascus Virginia in early November.  So far, they are holding up fairly well, although one did come loose from the heel are of my shoe on my AT hike, but stayed put once I pressed it back in place.  I believe this was probably the one I had to remove and reposition, but I'm not positive about that.  The photo below shows a little more wear on that patch (in my left shoe), with the edges peeling loose a bit, but this is also the same side shoe that deteriorated previously, so it may be I am just harder on my left shoes.

Engo patches in Vasque shoes
The patches on the insoles seem to be staying in place well and showing no wear so far.

Conclusions So Far:

So far, the Engo Blister Prevention Patches are very comfortable to wear.  I like the way they make my shoes easy to put on, since my heel just slides into place down the slick patch.  The first set didn't last as long as I expected, possibly due to the joint factors of extreme moisture and worn shoe linings.  I am curious as to whether the second set will last longer, and hope to get them into some wet conditions for testing.  Since blisters are more likely (for me at least) with wet footwear,  rainy, humid, or damp weather is when I expect they would be most helpful in preventing foot problems, and I hope I find they will last more than a couple of trips.  The patches do seem to stay in place when properly installed without sliding around.  They haven't stained my socks or caused extra wear on them that I can tell.

The patches are very easy to carry in my pack - I've simply slid a few inside a Zip-Lock bag along with my bandaids and other first aid items, and scarcely even notice they are there.

I would like to see the patches offered in a few different colors, black being one, and perhaps brown.  This would make the patches less obvious when applied to sandals or the edges of clogs.

Long Term Report - January 22, 2007

In the last two months I have worn the Engo Blister Prevention patches on several additional day hikes, including 2-4 mile hikes on dirt/mud county roads near my home, a 2 mile hike on dirt trails near a local school, a 10 mile hike on a gravel/dirt 'rail trail', and 1-3 mile hikes at a couple of Girl Scout camps, in addition to general all around wear.  Terrain varied from hilly to nearly level on the rail trail.  Weather varied from sunny to rainy to snowy, with temperature ranging from near 60 F (16 C) down to about 20 F (-7 C).  Oh, and one of the toughest 'hikes' - several miles of walking back and forth on concrete during a Girl Scout 'mall lock-in'!

On most of the hikes (and at the mall) I used my Vasque trail shoes, but I also installed a pair of the patches in my Merrell mid-height leather boots and wore them on a couple of the hikes.  The patches installed as easily in the boots as they had in the shoes.

On the rail trail hike, where it rained most of the day, I again had a problem with the patch at the left heel delaminating, and had to replace it again.  Below is a photo of the remnants of the delaminated patch:

Delaminated patch


When I removed the remnants of the delaminated patch to replace it, a bit of adhesive remained, as shown below:

Adhesive remaining in shoe

The patch in the right shoe at the heel is deteriorating slightly, curling a bit at the edges, in a manner similar to the photo of the left heel in my field report.  The patches in the toe area still seem smooth and unworn.

Final Conclusions:

The Engo Blister Prevention Patches do the job they are advertised to do.  I haven't had a single blister (other than the one when the patch came apart in my badly worn Dunham Terrastryder Lows).  They have lasted for numerous hikes, although when the patches begin to show evidence of wear with the edges curling, they seem to delaminate when worn under wet circumstances.  Overall I consider them long lasting, since I've had one patch last over 3 months, and an additional patch installed in shoes that were in good condition lasted over 2 months.  The patches make it easy to slide my feet in and out of my shoes or boots, have enabled me to wear sandals I otherwise wouldn't have been able to wear due to blistering, and have extended the life of my shoes.

I feel they work best when applied ahead of time to areas with potential for problems, since they need to be applied to dry footwear.  When I am in the field hiking, my shoes are seldom dry - they're either damp from sweat, or wet from stream crossings or rain.  Although I've carried a couple of sets of patches in my first aid kit, I haven't had an opportunity to apply them in the field - either I didn't need to, or my shoes weren't dry enough to do so if the need arose.

The only complaint I have is that the patches aren't available in different colors.  I'd like to see at least black and brown available.  I would have applied the patches to a pair of casual shoes I wear to work, which were rubbing the side of my heel, but I would have needed to apply the patch to the very top of the shoe, overlapping the top edge, and the blue patch just wouldn't be acceptable in a work situation.  My original likes about the product still stand - they are easy to apply and thin and light.  I definitely consider this a worthwhile product, and plan to apply them to shoes with problem areas in the future.

Thanks to ENGO and BackpackGearTest for the opportunity to test the Blister Prevention Patches.


Read more reviews of ENGO gear
Read more gear reviews by Pamela Wyant

Reviews > Health & Safety > First Aid Kits > ENGO Blister Prevention Patches > Pam Wyant > Test Report by Pamela Wyant



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