Hydro Flask Crushable Hat is lightweight, waterproof, breathable and crushable. Available in 2 colors. Free Shipping! Product Benefits Hydro Flask logo on the front One size fits all with an adjustable clasp in the back for a custom fit Lightweight and breathable Satisfaction guarantee Hydro Flask Lifetime Warranty. Hydro Flask Crushable Hat - Lava. This is a Hydro Flask One Size insulated temperature controlled... More