Specs Material: leather, nylon lining Thickness: 1.1 mm Weight: 46 g (1.6 oz) pair, size M Use: Alpine big wall climbing — provides protection while jamming, unobtrusive while face climbing Sizing Measure: Palm circumference — just below the knuckles, hand should be relaxed. Fit: Secure when hand is closed jamming, relaxed when hand is open. Stretch: The leather will soften and mold to your hand like a new pair of climbing shoes — becoming uniquely yours. Warranty We offer a 2-year warranty from the date of purchase when the product is used with the correct size. To ensure proper fit, please refer to our sizing video. We do not recommend sizing down, as this can cause excessive stretch and may lead to thumb loop failure. If you’re unsure about your size, contact us at [email protected] and we’ll help you find the right fit.