Both pairs of shoes are similar in size. The Genius shoes, due to the toe shape and material, can be worn more tightly with the same comfort.

They both fit similarly to 43 muiras and 43 scarpa instincts.

Fancy la sportiva genius shoes EU 43. Used once in a gym. $125 shipped with original box and packaging. Includes free gift.

La Sportiva katanas EU 43.5. Seriously freaking awesome shoes. I just haaaate tying and untying them at the gym so I got muiras velcro. Great condition. $85 shipped. Comes with free gift.

WILL TRADE FOR: Scarpa Instinct VS in size 43. Must be in excellent condition.