Hello,
1/ Add the next code in Theme Options > Theme custom CSS > Global:
.rtl .product-content .product_title {
font-family: "Lato-Regular";
font-size: 33px !important;
}
.rtl .single-product .widget-title {
font-size: 24px;
font-family: "Lato-Regular";
}
change size and font-family depend on your needs.
2/
.product_cat-bags-luggage .size-guide {
display:none;
}
Regards