Part of the Merrell 1TRLTM collection, theHydro Moc At Puff Mid 1TRLis an evolution of the divisive Hydro Moc. Featuring anEVA foam cage upper, which is super-resilient and water-friendly. The Puffy system uses a 200g Primaloft® Gold Series Eco Series Synthetic insulated upper witha midsole made from BLOOM® performance foam for extra support. Merrell Hydro Moc At Puff Mid 1TRL SPICE -Water-friendly and durable injected EVA foam upper - 80% recycled nylon upper - Toggle lace closure for easy on and off - Adjustable strap closure for quick adjustability - Heel pull tab for easy on and off - External rear sling locks in the heel - 200 grams Primaloft® Gold Eco Series synthetic insulation - BLOOM® performance foam is made of 10% algae biomass - FloatEco FoamTM for lightweight comfort that lasts. Color: brown