Merrell Choprock Sieve shandal review | Advnture。Merrell All Out Blaze Sieve water shoes in a sleek black and charcoal colorway. These performance hiking sandals feature a durable leather and fabric upper with hollowed-out side panels for maximum drainage and breathability. Designed with a convenient bungee lace system for a secure, adjustable fit and a protective toe bumper for rugged terrain. The Vibram outsole provides excellent traction on wet and dry surfaces, making these ideal for river crossings, hiking, and outdoor adventures. Note: These shoes appear to have replacement Keen insoles.