Scarpa claim that the new Delta GTX is their most luxurious and comfortable 3 season boot ever. 

The Scarpa Delta has the new ActivFit  which provides a new level of instant, out of the box comfort and performance. Built on the superb new BD last the foot will stay continually supported and secure, aided by the new auto fit foam inserts in the heel area. Underfoot the Biometric sole provides the state of the art in sole technology, featuring dual density PU, produced in a highly scientific environment to maintain the highest performance and quality standards from the material. The midsole is reinforced with an additional moulded thermo plastic shank (TPU) and finished with the Vibram outsole.