This Is A Summer Sneaker Ready For Water Adventures. And A Water Shoe You Can Run In. The Amphib Bold 2 Is Now Even Lighter, More Breathable And Versatile For All Kinds Of Summer Fun.Features:Upper Construction: Collapsible Heel:- Wear Your Shoes Like A Normal Shoe, Or Slide It On And Off With The Heel Collapsed.Upper Construction: Welded Upper:- Stitch-Free Upper Construction Provides A Smooth, Glove-Like, Fit And Feel.Lacing System: Quicklace™:- Minimalistic And Strong Lace For One-Pull Tightening. Easy-On, Easy-Off.Outsole: Water Contagrip®:- Designed For Adhesion On Wet Or Smooth Surfaces, Contagrip® Fd Uses Flat And Sometimes Siped Lugs, With A Highly Durable Compound.Outsole: Siping:- Perforated Grooves On The Outsole Improve Friction On Wet And Flat Rock Surfaces.Midsole: Energycell:- A High Performance Eva Foam That Provides Shock Attenuation.Upper Material: Single Layer Mesh:- A Single Layer Of Mesh, Close To The Foot, For Maximum Feel.Upper Material: Synthetic Upper:- Synthetic Upper Material Provide Great Durability And Protection For Outdoor Activities.Lining Material: Textile Lining:- A Soft, Breathable Lining For Extreme Comfort.Upper Construction: Gusseted Tongue:- The Tongue Is Connected To The Upper On Both Sides, Preventing Debris From Entering The Shoe, And Keeping The Tongue Centered.Upper Construction: Sensifit™:- Sensifit™ Cradles The Foot From The Midsole To The Lacing System, Providing A Secure, Snug, And Virtually Customized Fit All Around The Foot.Upper Construction: Soft Collar Construction:- A Soft Collar Improves Comfort And Creates A More Ergonomic Feel.Sockliner: Eva Sockliner:- A Simple But Effective Eva Sockliner That Offers Great Cushioning And Comfort, Instantly.Sockliner: S.Café® Recycled Sockliner Cover:- Based On Innovative S.Café® Technology, This Sockliner Cover Is Made From Coffee Grounds, Which Are Great At Managing Moisture And Controlling Odor.Upper Construction:- Protective ToecapBenefits:Running inspiration:- With an athletic bottom unit and a slim, lightweight construction, you'll look and feel fast.Summer ready:- With quick-drying, breathable mesh and an anti-odor S-Café® sockliner, as well as siped lugs for drainage. Ideal on land or in water.Effortless convenience:- The collapsible heel lets you wear it as a slide or a shoe, and the Quicklace™ makes adjusting the fit fast and easy.Specifications:- Inlay sole: Textile- Lining: Textile MCL- Outsole: Rubber- Upper: Textile / Synthetic- Drop: 6 in mm- Heel stack height: 24 mm- Forefoot stack height: 18 mm- Weight: 195 g- Lacing system: Quicklace®