The phi29-XT WGA Kit is optimized for sensitive, fast, and robust whole genome amplification (WGA), an isothermal method for amplification of an entire genome, starting from femtogram quantities of DNA and resulting in microgram quantities of amplified products. The kit features phi29-XT DNA Polymerase, an engineered polymerase with improved thermostability, sensitivity, and capable of generating a higher yield in a shorter reaction time than wild-type phi29 DNA Polymerase. Also included are exonuclease-resistant random primers (containing phosphorothioate bonds) to universally amplify any DNA sequence, neutralization buffer, and dNTPs. Input material can be purified genomic DNA, cells, or microbiomes. WGA enables several downstream applications, including single cell whole genome sequencing (WGS), genomic DNA enrichment, and environmental DNA (eDNA) enrichment and sequencing.