If you've worn 5.10's in the past, specifically less aggressive pairs (Rogues in my case) I would recommend sticking with the same size, or going a half size up. Would not recommend downsizing, as they are already a tighter fit than my rogues ever were, and I'm saying that understanding that an aggressive shoe obviously will "feel" tighter; it is still a tighter fit overall. I've spoken to a few other owners of these shoes that have both already been through the break-in period on them, and they say that the shoe lengthwise will only stretch slightly, but the toe box will expand width-wise to the shape of your foot nicely. This is something I was worried about because I have wide feet, and currently the toe box is very tight with my toes curled quite a bit on both sizes which lead me to consider returning them and half sizing up. However after talking to multiple owners that both agreed that the toe box expanded to accommodate their feet, I'm going to stick with the same size as my Rogues and endure through the break in.
Overall, besides the toe box, the fit is good. Snug around the right parts, very solid heel. Nice downturn while still being decently comfortable. Can't wait to put these through their paces!
I'll try to remember and update my review once I'm past the break in.
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- High-performance climbing shoes with exceptional grip
- Regular fit
- Elastic slipper closure
- Unlined leather upper with stretch
- Stealth C4 rubber outsole for unbeatable grip
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Product details
- Package dimensions : 34.01 x 23.19 x 11.4 cm; 830 Grams
- Date First Available : 18 February 2019
- ASIN : B07RY4WWB1
- Manufacturer reference : BTI87
- Department : mens
- Best Sellers Rank: 146,613 in Fashion (See Top 100 in Fashion)
- 3,285 in Men's Sports & Outdoor Shoes
- Customer reviews:
Product description
Tackle the most technical climbs in comfort. These high-performance climbing shoes have a leather upper that conforms to your foot for a snug fit. The aggressive downturned toe and a Stealth C4 rubber outsole grip narrow overhangs. Extended toe rands offer maximum friction.
Customer reviews
3.9 out of 5 stars
3.9 out of 5
46 global ratings
How are ratings calculated?
To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Top reviews from other countries

Bradley
4.0 out of 5 stars
but I expect they'll be great! They have a fantastic group onto holds
Reviewed in the United States 🇺🇸 on 11 October 2017Verified Purchase
Still in the process of breaking them in, but I expect they'll be great! They have a fantastic grip onto holds. They do turn your feet blue from the dye, however.

Jake Ryan Swanson
3.0 out of 5 stars
Great all around shoe, wears out quick.
Reviewed in the United States 🇺🇸 on 10 January 2017Verified Purchase
Pros:
-Great introduction to aggressive shoes.
-Comfortable after broken in.
-Good all around performance shoe.
-Bites the rock/plastic really well.
Cons:
-I burned through a pair in 2.5 months, rand/toe is dead. (I know this has to do with proper technique as well, but I have decent technique but climb every weekend and 3-5 days a week in gym.)
-The rubber is soft and bites the plastic and rock but the trade off is faster deterioration.
-Turns your feet blue for the entire time you own them.
-Stretches almost a half size
-Great introduction to aggressive shoes.
-Comfortable after broken in.
-Good all around performance shoe.
-Bites the rock/plastic really well.
Cons:
-I burned through a pair in 2.5 months, rand/toe is dead. (I know this has to do with proper technique as well, but I have decent technique but climb every weekend and 3-5 days a week in gym.)
-The rubber is soft and bites the plastic and rock but the trade off is faster deterioration.
-Turns your feet blue for the entire time you own them.
-Stretches almost a half size
2 people found this helpful
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Customer
1.0 out of 5 stars
Their Sizing Chart is Wrong
Reviewed in the United States 🇺🇸 on 30 September 2016Verified Purchase
i'm 14 and a avid climber and I've heard a lot about these shoes. I couldn't find a way to try them on before i bought them, so i tried a friend's on which were to big for me, but i bought from guessing and looking at their sizing chart. I wanted EU size 40, so i bought size 6.5 they finally came and they couldn't fit a 11 year-olds feet. so i compared their chart to Five Ten's and Amazon has their chart wrong, o to fit these shoes, use .10's sizing chart not amazons....but i still recommend them though.