We highly reccommend Gateway1 footwear.  These boots, are not ordinary boots, these boots have technology included with patented rubber & sole! Great for FARM & EQUESTRIAN USE.
 
UK sizes from 5 up to 15 including some half sizes. Amazing! 
 
Calf fit: Normal
Outsole: All-terrain gripper 2.0TM
Shank: TPU
Footbed: G1®-stage3TM footbed
Lining: Coil liningTM + 4mm neoprene 
Upper: G1® 70 vulcanized natural rubberTM
Comfort rating: -20C
Moisture transporting lining.
Very strong and durable rubber compound. Adjustable gusset will fit big calfs.
Lightweight, comfort and shock-absorbing like a running shoe.
Rough outsole profile for good grip in soft ground. Heel kicker function.