IT08974 Lemieux Crystal Cool Water Boots - Black with Turquoise TrimLemieux Crystal Cool Water Boots Black with Turquoise Trim 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. Always consult vet if symptoms persist. Can be re used multiple times. Soak for 2 4 hours prior to first use or after long periods in dry storage Some residue may appear on the surface