26mm/Loft 67mm Boti Enlightner 3 Band Bulb.
The classic bulb shape has a lower splay and higher backbone comparatively. 
The Enlightner 3 band  is an amazing knot that performs well above its price tag. Medium backbone and soft tips but with just a bit of scrub.
All Boti knots are handtied and handmade. As such, small variations can occur in width, height, and colour.