A horseshoe.
unity
Uneasy
unpresumptuous
écu
Utah
UGG is a brand of sheepskin boots
i-poopynoopy shoe by newbalance
Nike (a shoe-making company) makes a shoe starting from the letter "n".
A letter that starts with U is an urgent letter.
insole
letter that starts with u is unicorne
sneakers
etneys or emues
Vibrams
converse, clog
The Ukulele starts with the letter U.
A six letter word that starts with U is upward.