With the all-new Stumpjumper Expert

There's a custom flex zone are the toes for extra wiggle room

Mounting Pattern: 2x4 inserts

With a stylish look that goes well with any jacket and a laundry list of kid-friendly features

Bula Powerfleece Adult Helmet Liner Size:S/M With the all-new Stumpjumper ExpertThe Bula Power Fleece Liner offers warmth and wind protection under your helmet. The earband is made with Primaloft microfleece that outperforms conventional fleece's feel and function with a higher retention of warmth. The top is made with a Speed Dry fabric which allows moisture to escape and maintains body temperature to prevent heat loss. Together, they offer the perfect combination to keep you comfortable.