Soak & Go! Simple & easy way to cool legs after XC, work or injury. Unique water reactive crystals within boots swell & retain cold when soaked in water. Contoured shape supports the fetlock & tendon preventing slipping. Instructions for use Soak for 2-4hrs before initial application or after long periods of dry storage. Soak in bucket of cold water for 1hr prior to use (out of direct sunlight). Caution: avoid over-soaking as crystals may swell excessively. Add ice to water when available, the colder the water, the better the effect. Can be placed wet in a fridge but NEVER freeze boots. Tighten velcro straps firmly starting at the top, re-adjust once in position. Best therapeutic effect is gained with multiple 20-30min sessions. Let boots dry out prior to storage. Re-soak for 2-3hrs after long periods of inactivity. Always consult vet if symptoms persist. Can be re-used multiple times. Sold in Pairs.