Find Your Store
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards

Mastia Climbing Shoe

4.285714285714286 out of 5 stars
7 Reviews
Current price: $149.96 Original price: $199.95
25% off
Color:One Color


Size Chart


Mastia Climbing Shoe

The Mastia Climbing Shoe is Tenaya's most aggressive kick for stomping your hardest sends yet. Its sharp asymmetry and curved downturn are designed with overhung boulders and technical sport climbs in mind. This is the first shoe that Tenaya made with a thermally molded heel cup to ensure a secure fit as well as complement the rand's long-lasting dedication to maintaining the shoe's downturn for life. It features Vibram's best rubber in the gripping business to ensure reliable traction on greasy plastic holds and slippery rocks alike. Tenaya split the rubber sole at the arch to allow greater freedom of movement to transition from vertical to overhung terrain with equal prowess. 


  • Tenaya's most aggressive climbing shoe for boulders and sport
  • Sharp downturn accentuated with a thermally molded heel cup
  • Vibram XS Grip sole splits at arch for better freedom of movement
  • Microfiber upper with rubber rand and toe box a long-lasting curve
  • Single hook-and-loop allows quick on-and-off
  • Item #TNY000C
Upper Material
Vibram XS Grip (3.5mm)
Claimed Weight
Asymmetrical Curvature
Manufacturer Warranty
1 year

Overall Rating

4.5 based on 7 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 3 reviews
5 Stars - 3 reviews

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

August 31, 2023

Took a chance, no regrets

I've used it once or twice and have initial impressions
Size Bought:
6' 3"

Granted I am not an expert, but I have wide feet and can be very picky. These shoes are perfect! Super sticky, wide box, and great for small foot holds. I wear a size 12 mens shoe, and was worried that 10.5 would be waay too tight. Well, they are tight, but they stretched and I am very pleased.

Carlos C
4 out of 5 stars

June 7, 2023

Comfy, Wide, Aggressive

I've used it several times
Size Bought:
5' 5"

I'm an intermediate climber and was looking for aggressive shoes that weren't painful to wear. I have wide feet (in the ballpark of 3E-4E), and could really only fit in wide shoes like the Skwama (painful heel), Instinct (too high volume), Shaman (painful toe) and the Mastia. The toe cap rubber is flexible enough to relieve pressure on your toe knuckles and is functional. I'd say the shoe has moderate sensitivity - it's definitely more sensitive than XS Edge shoes, but not quite as sensitive as other slippers I tried on. The shoe is pretty flexible, and (so far) the shape holds and is tensioned enough to help you drive power through the toes (as someone new to aggressive shoes, I can definitely feel it working, and my feet need a break). It's been very versatile in the gym; I haven't gotten a chance to take it outside yet. Not sure why they use XS Grip instead of XS Grip 2, but the rubber doesn't seem as confidence-inspiring compared to other shoes I've tried. At any rate, I'd definitely buy it again, assuming that it's durable in the long run. As far as performance and comfort, it's a winner for me. For sizing, I followed Tenaya's suggestion (they have a sizing tool on their website). It recommended 1.5 (US mens) sizes down from street for a "comfort" fit, which is what I got. I generally wear my street shoes on the tighter end with not much room past the toes. The "comfort" fit is snug throughout the foot, but has a little slop in the heel (I have a narrow heel). Just to test the limits, I've cranked a heel hook with my full body weight, and my heel does slide around (I do have a narrow heels), but did not pop or dislodge the shoe. I can generally wear the shoe for ~20-30 mins at a time before needing a quick break, to relieve my foot from the tension in the curved shape. IMO this is perfect for any casual climber as my climbing rarely requires that intense of a heel hook. I do wish that If you're looking for performance, I'd go 2 sizes down, and if you're one who likes squeezing your foot for every last drop of performance, I'd go 2.5 sizes down. If you wear your street shoes with a lot of room past the toes, I'd go down half a size further. YMMV as everyone's feet are different.

Michael D
5 out of 5 stars

February 20, 2023

Favorite Tenaya Shoe

I've put it through the wringer
Size Bought:
5' 7"

I have tried 3 other Tenaya climbing shoes and the Mastia is by far my favorite! I pretty much only used it in the gym so I don't know how well it fares outdoors, but I found it very versatile in the gym setting. I definitely would buy it again (: FYI - the chart that is shown is US men's, click on the full-size chart to see women's/EU sizes... I got confused initially since there was no label on the chart.

Annabelle M
3 out of 5 stars

September 9, 2022

Size Down!

I returned this product before using it
Size Bought:

This is a review on sizing only, as these run shockingly large. My street shoe size is 11, and I wear Tenaya Ra in size 10.5 with a form-fitting, snug/comfortable fit. The Mastia at the same size as the Ra is downright loose. I could slip my foot out while strapped, and I didn’t even have a chance to climb in them. I know climbing shoe sizing is all over the place, but the gap between the fit of these and the Ra is baffling.

Michael G
4 out of 5 stars

August 26, 2022

Great shoe for Wide Feet

I've put it through the wringer
Size Bought:
5' 4"

This was my go-to shoe for about a year for bouldering and some sport climbing. The shoe has a nice fitting heel for my foot compared to the Oasi and the Iati models, and the heel design is similar to the Skwamas for stability. It also is stiff rubber, but softens over time. That being said, my experience with other Tenaya models can be said for this one as well. For reference, I’m a street 8.5 M, and I have to get these 5.5-6 M, same with other Tenaya models. These shoes will probably last you for a good 3-6 months before they start to become floppy and the rubber begins to fall apart. It doesn’t really help that they can be pricey too. However, these are pretty great shoes for the time you have them. Other models I’ve owned: Five Ten Hiangle Men’s- 7.5 US M La Sportiva Mantra- 6 U.S M

Janfel B
4 out of 5 stars

May 10, 2022

Small Foot Review

Size Bought:
5' 8"

I'm a mens size 7.5 in Evolv (shamans and oracles), I orded the 7.5 Mastia - I will say if you have a narrow foot this isn't the shoe for you. I'm bummed because I like the way they look a lot and I've heard amazing things.

scott m
5 out of 5 stars

August 9, 2021

Confidence Inspiring!

I've put it through the wringer
Size Bought:
5' 11"

This shoe strikes a great balance of sensitivity and power. The mid sole is rather soft, but the toe box and edge is stiff enough to transfer power even on small holds. The shape of the toe box aids in precision, and the heel fits and sticks well across a wide range of holds. For an aggressive shoe, it is immensely comfortable. As for sizing, this shoe runs large compared to other Tenaya models. I'd recommend going down a half size from what you wear in the Iati/Oasi/Mundaka. Sizing compared to other brands: Mastia Size purchased 41.5 (41 would be performance fit) Tenaya: Mundaka 41.5 Lasportiva: Skwama/Genius 41.5, Solution/Solution Comp 42 Madrock: Drone HV 11 M Evolv: Oracle 10.5 M 5.10: Hiangle 10.5M

Carter P