Getting custom size image URL

You can do this with a piece of the code from the “Post Thumbnail Linking to large Image Size” example on the get_the_post_thumbnail page (using wp_get_attachment_image_src):

<?php
$image_url = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'team-member' );
// actual URL = $image_url[0];
?>