Master Jam Crack Gloves

The New Standard in Crack Performance. Re-engineered with a thinner profile, stickier rubber, and a more ergonomic fit. These gloves have been used to climb some of the world’s hardest cracks, so get ready to protect your skin, maximize your dexterity, and jam harder than ever before.

The Master Jam Crack Glove isn’t just an update, it’s a total overhaul. We’ve taken years of feedback to create a glove that feels like a second skin while still providing that “bomber” protection.

Features

• Advanced rubber and dexterity: A new, stickier rubber compound and strategically reduced thickness in non-essential areas help keep the glove dexterous on the hand, so it can jam into more difficult cracks without sacrificing grip or protection.
• Ergonomic fit: A completely redesigned shape follows the natural contours of your hand and moves with your hand when transitioning through different jamming techniques.
• Enhanced comfort on finger and thumb loops: Wider finger loops help eliminate pinching on long sessions. The thumb loop fit has also been refined while still providing protection and friction for fist, teacup, and stacked jams.
• Built to last: Strengthened eyelets, improved rubber-to-material bonding, and eliminated stitching reduce wear points.
• Face climbing ready: The palm remains free, and material between the fingers is kept to a minimum to preserve normal hand-to-rock friction on face holds and prevent a baggy feel outside the crack.

Technical Specs

• Rubber: Ultra-sticky, variable-thickness compound.
• Wrist: Extended for deep-jam abrasion protection.
• Closure: Secure, low-profile strap.
• Fit: Ergonomic second-skin profile.
• Sizes: XS, S, M, L, XL.
• Weight: 0.06 kg
• Dimensions: 5.9 × 5.9 × 0.78 in.
• SKU: MAST-JAM

Sizing

For the perfect fit, please refer to the glove fitting guide sizing chart in the product image gallery.