Super light. Great condition and only minor wear on back ends of heels. Mainly used to slip on to get the mail, go to the store, grab a beer, or go weed the yard. Easy cleanup/hose off and super comfy. 43 I believe is equivalent to a men's 10 or women's 12. Consult birkenstock site for size guide. The brand new ones look like they have green buckles otherwise these are the same ones just a previous model. Only offering them up because I have an oiled leather pair with cork soles and a pair of oofos. Wife told me I need to let something go. Thanks for checking this out!