<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<div class="row">
<form method="get">
<div class="form-group">
<div class="col-md-2 box"><label class="btn btn-primary"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Running.png" alt="..." class="img-thumbnail img-check"><input type="radio" name="chk1" id="item4" value="val1" class="hidden" autocomplete="off"></label></div>
<div class="col-md-2 box"><label class="btn btn-primary"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Basketball.png" alt="..." class="img-thumbnail img-check"><input type="radio" name="chk1" id="item4" value="val2" class="hidden" autocomplete="off"></label></div>
<div class="col-md-2 box"><label class="btn btn-primary"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Football.png" alt="..." class="img-thumbnail img-check"><input type="radio" name="chk1" id="item4" value="val3" class="hidden" autocomplete="off"></label></div>
<div class="col-md-2 box"><label class="btn btn-primary"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Soccer.png" alt="..." class="img-thumbnail img-check"><input type="radio" name="chk1" id="item4" value="val4" class="hidden" autocomplete="off"></label></div>
<div class="col-md-2 box"><label class="btn btn-primary"><img src="http://content.nike.com/content/dam/one-nike/globalAssets/menu_header_images/OneNike_Global_Nav_Icons_Soccer.png" alt="..." class="img-thumbnail img-check"><input type="radio" name="chk1" id="item4" value="val4" class="hidden" autocomplete="off"></label></div>
</div>
<div class="clearfix"></div>
<input type="submit" value="Check Item" class="btn btn-success">
</form>
</div>
</div>
</body>
</html>