Where do you plan to snowshoe?
Flat terrain snowshoes: less expensive, have a simple binding system, provide modest traction, no heel lift for climbing steep slopes.
Rolling terrain snowshoes: moderate price and traction, have a sturdy and adjustable binding system, heel lift in many (but not all) styles.
Mountain terrain snowshoes: pricier, aggressive crampon system for traction, sophisticated binding system for beefier boots, heel lift in most styles.
Sizing snowshoes
The more weight between you and your pack, the more surface area required for flotation. Verify that your maximum load is below the one listed in one-size snowshoes, or within the recommended load for snowshoes that come in multiple sizes.
Powder snow calls for bigger (longer) snowshoes.
Compact, wet snow and packed trails can be traveled over while wearing smaller snowshoes.
Steep (but not powdery) slopes and icy terrain are easier to negotiate with smaller snowshoes.
Which snowshoe binding is right for you?
Rotating (or floating) bindings: reduce leg fatigue when climbing, shed powdery snow well and allow you to kick steps on steep slopes.
Fixed bindings: less efficient than snowshoes with pivoting bindings but allow a more natural walking movement on flat and hard-packed terrain.
Read full article: How to Choose Snowshoes