Old Navy High-Waisted CozeCore Side-Pocket Leggings The Old Navy High-Waisted CozeCore Side-Pocket Leggings ($25-$35, originally $35) get our vote for workout leggings that we'd also lounge in. Yes, they're breathable and stretchy enough for all your moves, but they're also incredibly cosy in the inside with pockets on both sides. Image Source: oldnavy.gap.com Old Navy High-Waisted CozeCore Side-Pocket Leggings $25 from oldnavy.gap.com Buy Now