SB-BOA2 Size: 2 (15.5" H x 7" W x 5.5" D) Features: -Barefoot boot.-Excellent hoof protection for occasional and long distance ridding.-Can be used as a spare for a lost shoe.-May be used in the e correction and treatment of impact-caused injuries, provides protection during trailering.-Top of boot is a vinyl and cushioned/bottom of boot is a very hard rubber work boot type tread. Dimensions: -Size 1 fit Horse Boot 4.25-4.88" W x 4.63-5.13" L.-Size 2 fit Horse Boot 4.88-5.25" W x 5.13-5.38" L.-Size 3 fit Horse Boot 5.25-5.88" W x 5.43-5.88" L.-Size 4 fit Horse Boot 5.88-6.25" W x 5.88-6.38" L.-Size 1: 13.25" H x 6.25" W x 5.25" D, 3.1 lbs.-Size 2: 15.5" H x 7" W x 5.5" D, 3.6 lbs.-Size 3: 15.5" H x 7" W x 5.5" D, 3.8 lbs.-Size 4: 15.5" H x 7" W x 5.5" D, 4.1 lbs. Collection: -Boa collection.