Now that you have a rugrat to bring along on your outdoor shenanigans, dress him up in the soft, short-sleeve Backcountry.com Infant Boys" Sprout Body Suit so he"ll fit into the hiking or climbing crowd. Product FeaturesMaterial: Dri Release (85% polyester, 15% cotton)Insulation Weight: Fit: Length: Center Back Length: Pockets: Antimicrobial: SPF Rating: UPF Rating: Thumbholes: Recommended Use: infant clothing, romper, outside timeManufacturer Warranty: lifetime