Numa Laces provide extra length to accommodate all foot sizes. Please trim excess material after sizing the sandals to your feet.
*All Numa Sandals are non-returnable/non-exchangeable after laces have been trimmed*
Key Specs
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Chargers Sole
Thickness (inside tread): 5mm-6mm
Thickness (total with tread): 7mm
Weight: approximately 3.7oz / sandal (at size 9)
Shipping + Returns
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Processing Time: 1-5 business days
Shipping: Eligible for FREE domestic shipping
Returns/Exchanges: Return or exchange within 30 days from delivery for a full refund, no questions asked, if your sandals aren’t totally amazing and changing the way you feel about your feet. See policy here.
Numa Chargers
Numa Chargers are designed to give you the ultimate barefoot experience on the toughest city streets. Numa Chargers are simple to use, a breeze to put on and they seamlessly connect you to a sole that is perfectly tuned for life in the city. You’ll never look at concrete and asphalt the same way again.
Sole
Chargers use a 6mm Vibram® Morflex sole coupled with your choice of our UltraGrip or Tobacco Brown Goatskin Leather footbed. Chargers have a 7mm total stack height. A blend of rubber and EVA, the Morflex compound is known for being lightweight, with a firm but cushioned feel underfoot. Morflex is also known for a quick break-in time. While not as thin as the Warriors, Chargers are a better choice for people who want to go very thin but would like a small amount of cushioning. Pair with the UltraGrip footbed for use in the harshest elements, or select the Goatskin Leather for more comfort in drier conditions.
Numa Lacing System
Numa uses a handsfree slip-on lacing system that stretches with your feet as they move. The result is our most comfortable, seamless, and easy-to-use lacing system yet. The secret is our custom ¾” elastic forefoot section. This innovation gives the lacing system the ability to stretch where you need it most: over the arch and middle of the foot, creating a seamless connection between your foot and the sandal. Added benefits of this system include a self-adjusting toe plug buckle and forefoot strap that is custom-cut. This allows all our Numa Sandals to rival flip-flops in terms of comfort without sacrificing convenience. This system uses our innovative and flexible heel posts to keep the heel strap in an optimal position, and these laces are made using Ultrasuede for the highest level of comfort available. Comfort, connection, and convenience are waiting for you with the Numa lacing system!
Recraftable
Just because you wore a hole in your sandals, it doesn’t mean you have to throw them away! Our modular approach to sandal-making means that worn out parts can be replaced with a pair of pliers at home. Why throw away what you can repair? Visit our Parts Page to learn more!
Made in the USA!
Proud to be made in the USA and we wouldn’t have it any other way! All of our sandals are made right here in Santa Cruz, CA by our small team. Follow us on Instagram and Youtube to get a glimpse of how we do it on a regular basis.
Customer Reviews
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I have 5 pairs of Shamma sandals and though I love them all, the Numa Chargers are easily my favorite. The straps are so comfortable and really easy to adjust. I have both the ultra-grip and the tobacco leather. Please do not ever stop making these.
I have 5 pairs of Shamma sandals and though I love them all, the Numa Chargers are easily my favorite. The straps are so comfortable and really easy to adjust. I have both the ultra-grip and the tobacco leather. Please do not ever stop making these.
F
Frank F.
Amazing
I have 5 pairs of Shamma sandals and though I love them all, the Numa Chargers are easily my favorite. The straps are so comfortable and really easy to adjust. I have both the ultra-grip and the tobacco leather. Please do not ever stop making these.
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Sizing Chart and Adjustment Guides
SANDAL SIZING CHART
We strongly recommend using the templates to check your foot size to ensure a perfect fit!
NOTE:Make sure your printer doesn’t resize or shrink to fit when printing! You can check if the templates printed to scale by measuring the printed ruler on the page with a ruler or tape measure. Larger sizes will need to be printed Poster across 2 sheets of paper. You can download the free version of Adobe Acrobat PDF Reader and print the templates in the "poster" setting. This should print to scale across two pages.
Shamma Sandals use custom soles that are designed to give you the best possible fit and experience, so please check your measurements with our sandal sizing chart. The templates of the sandals are available for download and printing.
To size yourself, print the template out and place your foot on the template so that the toeplug hole is between your big toe and first little toe. Make sure that your toes aren’t hanging off the front of the template, and that your ankles line up with the ankle slots on the sides of the sandal. If the ankle slots are under your foot a little bit, that’s ok, the laces come up and around your feet – just make sure that your toes don’t go past the front of the sandal, that your heel doesn’t go past the back of the sandal, and that the toe hole and ankle slots line up with your feet. For the best fit, we recommend choosing a sandal size that gives you between an 1/8" (3.18mm) to a 3/16" (4.76mm) of extra room in front of your toes and behind your heel. Thus, we recommend getting sandals that are 1/4"-3/8" (6.35mm - 9.53mm) longer than your foot.
If you don't have a printer, you can measure your foot according to the instructions in the video above (Episode 4) and compare those measurements to the sandal measurements on the chart above and choose a size that is 1/4"-3/8" (6.35mm - 9.53mm) longer than your foot. You can also send your foot measurements to us at contact@shammasandals.com and we would be happy to recommend a size based off of those measurements.
BOOT SIZING CHART
For boot sizing, you can generally go with your standard street shoe size.
NOTE:Make sure your printer doesn’t resize or shrink to fit when printing! Check the measuring line of the template to a physical ruler before sizing! Larger sizes will need to be printedPosteracross2 sheets of paper.
Shamma Size
US Men’s
US Women’s
Insole Length (Inches)
5
N/A
6
9.25
5.5
N/A
6.5
9.4375
6
6
7
9.625
6.5
6.5
7.5 – 8
9.875
7
7
8.5
10
7.5
7.5
8.5 – 9
10.125
8
8
9 – 9.5
10.3125
8.5
8.5
9.5 – 10
10.5
9
9
10 – 10.5
10.625
9.5
9.5
10.5 – 11
10.8125
10
10
11 – 11.5
10.9375
10.5
10.5
11.5 – 12
11.125
11
11
12
11.3125
11.5
11.5
N/A
11.5
12
12
N/A
11.625
12.5
12.5
N/A
11.765
13
13
N/A
11.9375
13.5
13.5
N/A
12.16
14
14
N/A
12.25
14.5
14.5
N/A
12.50
ADJUSTMENT GUIDES
Did you receive your new pair of Shammas, but looking for some extra tips on how to get the perfect lace adjustments? Look no further! Below you can find step-by-step written instructions as well as videos for how to lace your sandals!
Elite Lacing System
(Our Elite Lacing System includes Elite Warriors, Elite Chargers, Elite Maximus, Elite Alphas, and Elite Ibex).
1. First, loosen all 3 strap zones until there is excess slack in each section. The straps should be extremely loose in all three zones.
2. Start by centering your foot on the sandal, so that the placement of your foot is in the desired final location (you should have equal room in front of your toes and behind your heel with this placement).
3. Now that your foot is centered on the sandal, adjust the buckle front to back to find a desirable location.
4. Now tighten the insole strap. This will dictate the buckle’s left to right position on your foot. Keep the buckle parallel with the bone behind your big toe. If the buckle is too close to the bone behind your big toe it may be uncomfortable. If this is the case, loosen the insole strap and reposition the buckle farther to the outside of the foot.
5. Now that the buckle is in it’s desired position and the insole strap is tightened, tighten the toe strap until snug and comfortable.
6. Tighten the heel strap to your desired comfort level and enjoy your Shamma Sandals!
Numa Lacing System
(Our Numa Lacing System includes Numa Warriors, Numa Chargers, Numa Maximus, and Numa Alphas).
1. First, loosen the two strap zones (heel strap section and elastic forefoot strap) until there is excess slack in each section. The straps should be extremely loose in both zones.
2. Start by centering your foot on the sandal, so that the placement of your foot is in the desired final location (you should have equal room in front of your toes and behind your heel with this placement).
3. Now that your foot is centered on the sandal, adjust the heel strap to fit comfortably.
4. Now tighten the elastic forefoot strap. This will dictate the buckle’s left to right position on your foot. The buckle will self-adjust so don't worry about placement. Push the elastic through the tension-lock buckle on the heel in order to adjust its tightness. For lifestyle use, you won't need it super tight, it should just be comfortably tight.
5. Make any adjustment on your heel strap if needed and enjoy your Shamma Sandals!
TrailStar Lacing System
(Our TrailStars Lacing System includes TrailStars Maximus, TrailStars Alpha, and TrailStars Omega).
Super Lacing System
(Our Super Lacing System includes Super Browns and Super Goats).
Models in our Super Collections have 3 adjustment zones for the perfect fit- the toe strap, the insole strap, and the heel strap.
1. First, loosen all 3 strap zones until there is excess slack in each section. The straps should be extremely loose in all three zones.
2. Start by centering your foot on the sandal, so that the placement of your foot is in the desired final location (you should have equal room in front of your toes and behind your heel with this placement).
3. Now that your foot is centered on the sandal, adjust the buckle front to back to find a desirable location.
4. Now tighten the insole strap. This will dictate the buckle’s left to right position on your foot. Keep the buckle parallel with the bone behind your big toe. If the buckle is too close to the bone behind your big toe it may be uncomfortable. If this is the case, loosen the insole strap and reposition the buckle farther to the outside of the foot.
5. Now that the buckle is in it’s desired position and the insole strap is tightened, pull any extra slack from the toe strap zone through the outside ankle slot towards the heel.
6. Tighten the heel strap to your desired comfort level and enjoy your Shamma Sandals!
Cruzer Lacing System
Our Cruzers models have 3 adjustment zones for the perfect fit - the toe strap, the insole strap, and the heel strap.
1. Adjust to Desired Fit
After centering your foot on the sandal, adjust the outside lacing so that the buckle is in a comfortable position and there is tension (but not too much) between the toe plug and ankle slot.
2. Pull On Power Sleeve
Adjust the heel strap by pulling up on the power sleeve, to create some space to tighten the heel strap. It should be enough space to grab the slack with two fingers.
3. Pull Slack Through
Pulling from the heel strap side, pull the extra slack through the bottom of the sandal until the Power Sleeve is resting in a snug position.
4. Pull On Power Sleeve
Pulling from the inside lacing side of the Power Sleeve, pull the extra slack through the Power Sleeve until the strap is flush with the sole of the sandal.
5. Adjust To Desired Fit
First, create slack underneath the buckle by creating some tension on the inside lacing side of the buckle. Adjust the lacing until comfortable.
6. Pull Slack Through
Take extra slack and feed it back through the buckle, towards the inside lacing of the sandal. Pull slack until the buckle is flush with the foot.
7. Put Extra in Keeper
To keep the extra slack secure, feed the strap through the keeper and pull until comfortable. You are now ready to explore!
Classic Lacing System
(Our Classic Lacing System includes models: All Browns, All Blacks, and Old Goats.)
For more in-depth Classic Lacing steps, please click HERE.
If you're having trouble finding the perfect fit after following the sizing or lacing guides, or if you have any questions, please Contact Us, we’re happy to help!
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