Sirius Lace


(6 customer reviews)


Precise and aggressive – the Sirius Lace is the shoe for your most demanding projects! Equally at home in the gym or outside these shoes excel on vertical and steep overhung terrain where every last fraction of friction helps to propel you up. A full RS rubber sole and medium stiffness midsole provide the perfect combination of sensitivity and friction. The offset lacing system allows you to dial in the perfect fit and provides extra surface area for toe hooks without sacrificing fit or function. Your climbing partners will swear that you’re cheating with these shoes!

  • 3.5mm RS rubber
  • Medium stiffness midsole
  • Lined synthetic upper
SKU: 3240 Categories: ,

Additional information

Weight 23.15 oz
Dimensions 12.5 × 5.8 × 3.7 in


Shoe Type


Rubber Click here to learn more about UP rubber
International Sizing Click here to compare shoe sizes by international market

6 reviews for Sirius Lace

  1. Aron Back

    The Sirius Lace fits true to your street shoe size, they fit perfectly right out of the box, no adjustment period needed. If you’re looking for more high-end performance then comfort, I personally would recommend going a half size smaller, but no more. The craftsmanship is high quality, including re-enforced lace wholes and pull-on tabs. The rubber is soft but firm. Great for edging on a dime, steep terrain as well as vertical and slab and the heel hooks like a champ. Great for hard bouldering and sport climbing. They are a very versatile shoe, also a great choice for indoor and competition climbing.

    • Sang Lee

      Hi Aron,

      Thanks and we missed to reply on your feedback. what shoes are you climbing next? UP is working on Sirius Slipper for next season. Will update when it is ready.

  2. bankheadblake (verified owner)

    As said before the fit of these shoes was perfect the moment i put them on. I have had these shoes for close to a month now and i have to say, the asymmetrical lacing made the fit of this shoe a dream. That combined with the reinforcement on the lacing holes made this shoe an absolute work horse! The rubber itself is as good as it comes, able to out smear and edge a majority of the other shoes i have tried. And also bravo on adding a low volume version for the selection as well.

  3. Jack

    The Serious is great shoe! The fit is excellent right out of the box. I got my street shoe size and they work great for extended wear at the gym. I have a lower volume foot so for a “performance fit” I’d go a half size down. The diagonal lacing is great as it tensions the shoe well but also allows for more rubber over the toe for hooking. The rubber is super sticky and hooks up well on edges but also smears well for a down turned shoe. It’s a winner!

  4. Matt Murphy (verified owner)

    Great shoes. Pretty comfortable right out of the box, I went with the same size as my highangles. Much softer than I anticipated however, these are by far the softest shoes I have ever owned. Not a negative, I was just expecting a shoe with a little more stiffness. Edging hurts the toes a bit. That said I love the design and the fit and the rubber is super sticky.

  5. Gregory Idler (verified owner)

    Shoes are great; going to buy my second pair a little bigger than the ones I wear now. The inside lining ripped on my left and right shoe where the reinforced pull tabs are. I want to see if a half size will make it so I don’t actually have to break the shoe to break it in.

  6. Steven bouzas (verified owner)

    I am very happy with my Sirius lace ups. The shoes fit like a dream. No space in the heal, they have a great edge, and the rubber is super sticky. Also UPS customer service is awesome!

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