Easy-to-use, lightweight splint for bed/night use, the Comfy Night Boot offers help for Plantar fasciitis, Achilles tendonitis, Plantar flexion, Sprains or Fractures. The dorsiflexion straps to prevent plantar flexion. There are three adjustable foot straps for easy closure. The Comfy Night Boot is available in grey plastic frame (not adjustable) and is lined with soft lycra foam interior. The washable and breathable material helps eliminate heat buildup. To clean, wipe with a damp cloth using mild soap or disinfectant and then wipe to dry. The liner and straps can be hand washed in cold water with mild soap and left to air dry. Comes in size large which fits Men's shoe sizes 10.5+ and Women's shoe sizes 11+.