Regular length 0 degree Hyke and Byke Eolus. First time I used it was in a tipi and I got too close to the stove with my feet. Burnt a hole in the outer shell but no damage to the polyester lining in the footbed. Haven’t used it since because it was too narrow for my liking. I duct taped it for a temporary fix. I will attach pics of the hole before it was covered $85 TYD. PayPal f&f or add fees for g&s. Also have Venmo