{% load crispy_forms_filters %}

<div class="form-control">
  <label class="label cursor-pointer">
    <span class="label-text">{{ field.label }}</span>
    <input type="checkbox" 
           class="checkbox {{ field.css_classes }}"
           name="{{ field.html_name }}"
           id="{{ field.auto_id }}"
           {% if field.value %}checked="checked"{% endif %}
           {{ field.field.widget.attrs|flatatt }}>
  </label>
</div>