(TrendHunter.com) The Birkenstock Utility Felt Pack reinterprets two of the brand’s most iconic designs, the Boston Nova clog and the London Nova shoe, in soft wool felt finishes. Presented in shades of Anthracite…(TrendHunter.com) The Birkenstock Utility Felt Pack reinterprets two of the brand’s most iconic designs, the Boston Nova clog and the London Nova shoe, in soft wool felt finishes. Presented in shades of Anthracite…